Several candidates and party offices were subject to politically motivated attacks, culminating in the death of four HDP supporters after two bombs exploded during a rally in Diyarbakır on 5 June.

Other significant factors that opposition parties would also need to overcome were issues such as media bias and electoral fraud, both of which increased sharply in the preceding local and presidential elections.

While four years without elections may allow the government to undertake widespread necessary economic reforms, critics of the AKP argue that it is an opportunity to further erode the diminishing checks and balances and separation of powers in the Turkish political and legal systems.

[12] In October 2014, the AKP parliamentary group leader Naci Bostancı ruled out any prospect of holding the election early and Prime Minister Ahmet Davutoğlu stated in November that they would be held in June as per normal.

Revelations confirming that National Intelligence Organisation (MİT) lorries that were sent to Syria in January 2014 were in fact carrying weapons also resulted in accusations of high treason and war crimes being made against the AKP government.

On 5 January 2015, the Supreme Electoral Council of Turkey announced that the general election would take place on 7 June and also released a decision in regards to the process for standing as a candidate.

Despite being constitutionally barred from being partisan, President Recep Tayyip Erdoğan made several statements in the lead-up to the election that set the AKP's electoral targets higher at 400 MPs, though even pro-AKP polling organisations show that such an eventuality is highly unlikely.

[60] Other policies included raising pensions, investing in infrastructure, continue developing the Kanal Istanbul project and expand Turkey's high speed rail system and 4G coverage despite President Erdoğan's insistence that 4G would be a waste of time.

In March 2015, a document allegedly regarding a closure case against the Republican People's Party was leaked online, causing many opposition politicians to accuse the AKP of attempting to eliminate competition through anti-democratic practices.

AKP leader Ahmet Davutoğlu denied the claims and called for Kılıçdaroğlu to meet with him to put forward a constitutional amendment that would make it impossible for a political party to be shut down by the courts.

The difference between Gülen's Islamist and the CHP's secular ideology resulted in inner-party controversy and led to the resignation of İzmir MP Birgül Ayman Güler in January 2015.

[77][78] The CHP manifesto announced on 19 April includes measures to increase disability benefits, the minimum wage to ₺1,500 and to extend general health insurance to 3.2 million people in order to combat poverty.

[83][84] The MHP has been predicted to build on its success in the 2014 local elections and significantly improve its vote share, with support coming from former AKP nationalist voters who are disillusioned with the Kurdish peace process.

The MHP has strongly targeted the AKP in their campaign, accusing the Supreme Electoral Council of severing no-one apart from Recep Tayyip Erdoğan and vowing to bring violations of the law to justice in the future.

[33][99][100] The Democratic Left Party (DSP), having declined to enter an electoral alliance with the CHP, made visits to trade unions and set its target to surpass the 10% election threshold.

[101] A DSP candidate in Isparta caused media attention after he posed with a glass of rakı in a campaign poster, arguing that it was a protest against the declining values of Mustafa Kemal Atatürk.

[112] The Independent Turkey Party, led by Haydar Baş, campaigned on its policy of raising the minimum wage to ₺5,000 and claimed continuously that private polling results showed that the BTP was trailing above the 10% threshold.

[117] The Liberal Democrat Party (LDP), led by Cem Toker, formed a partnership with an election monitoring volunteer organisation named Votes and Beyond (Oy ve Ötesi).

According to the new decision by the Council, overseas voters will be able to cast their votes up to 24 days before the actual general election within Turkey takes place without booking an appointment.

The source claimed that the party had a 5-point plan for every election, consisting on releasing bogus opinion polls, intentionally miscalculating the number of votes during counting and sending incorrect results to the electoral council, the bribery and threatening of returning officers to stop the miscounting from being reported to the authorities, the misleading announcement of the AKP's scale of victory early on to incentivise demotivated opposition observers to abandon the ballot boxes and as the use of fake addresses and dead people as voters.

[157] In Adıyaman, an individual who was filmed walking out of a polling station with a bag full of votes claimed that he was going to Mosque, but was violently apprehended by many voters who had arrived on the scene.

Erdoğan allegedly demanded the government to put the Solution process that he had started as prime minister with Kurdish rebels on hold, having observed a significant defection of AKP voters to the MHP.

Former footballer and AKP MP Hakan Şükür, who resigned from his party following the 2013 government corruption scandal, came the closest to being elected with around 32,000 votes, running in Istanbul's 3rd electoral district.

[196] Osman Pamukoğlu, the leader of the Rights and Equality Party, ran as an independent to bypass the election threshold and won around 15,000 votes, submitting a complaint to the Electoral Council over the results.

Erdoğan's ambitions for an executive presidential republic (which would give him substantially greater powers as a result) was deemed to have been unanimously rejected by the electorate according to the CHP and the HDP.

Erdoğan's implicit participation in the AKP's campaign made him as accountable as the party's leader Ahmet Davutoğlu for the loss of their majority, according to many politicians and media commentators.

[207][208] President Erdoğan also made a written statement, stating that the voters' decision could not be argued against and that all parties needed to show responsibility and sensitivity in the government forming process.

[218] CHP leader Kemal Kılıçdaroğlu, who oversaw a drop of 1% in his party's vote share since the 2011 general election, issued a statement praising democracy for ousting the AKP majority government from power.

[226] With a potential period of instability due to the lack of a clear government composition, the Turkish lira fell sharply against the US Dollar and the Euro on 8 June, a day after the election.

With a spate of terrorist attacks by the Kurdistan Workers' Party (PKK) and the Islamic State of Iraq and the Levant (ISIL) on Turkish soil in response to the government's Operation Martyr Yalçın, Bahçeli ended his support for an early election claiming that it was not possible during such circumstances.