Syed Saddiq is a founding member of the Malaysian United Democratic Alliance (MUDA) and served as its 1st President from September 2020 until November 2023.

In 2021, Syed Saddiq was charged with several counts of corruption, including criminal breach of trust, misappropriation of funds, and money laundering.

On 28 October 2022, he was ordered by the High Court to enter his defence after the prosecution showed that there was enough evidence against him to prove that he probably committed the crime.

[11][12] Saddiq as a law graduate came to prominence in 2016 when he joined 24 other youths, a group that called themselves Change Led by the Young Generation (Challenger), published a statement rejecting Najib Razak's leadership over the scandal of 1Malaysia Development Berhad (1MDB).

[22] In July 2019, Saddiq tabled a Bill in Parliament to amend the Federal Constitution to lower the voting age to 18[23] but it was withdrawn and re-tabled later after it was tweaked to accommodate some changes.

[32] However instead of joining PEJUANG, on 21 August Syed Saddiq announced that he will be establishing a new multi-racial, youth-centric party.

[33][34] On 17 September 2020, Saddiq launched and co-founded the Malaysian United Democratic Alliance (MUDA) and was officially registered as political party on 23 December 2021.

In July 2021, he was charged with criminal breach of trust and misappropriation of funds belonging to his former party, BERSATU.

[41] On 18 July 2022, the High Court rejected Syed Saddiq's bid to impeach star witness Rafiq Hakim Razali due to his 'contradicting statements' in his ongoing criminal breach of trust trial.

[43] On 28 October 2022, the High Court found that the prosecution had succeeded in proving a prima facie case against Syed Saddiq, and he was ordered to enter his defense on four charges of misappropriation of assets, money laundering and abetting in criminal breach of trust.

[44] On 9 November 2023, Syed Saddiq was found guilty of all the corruption charges by the High Court, sentencing him to 7 years' imprisonment, a RM 10 million fine and two strokes of the cane.

[46] On 12 December 2024, it was reported that Syed Saddiq filed his petition through his lawyers, listing 18 reasons why he should be freed from the graft case.

[51] In July 2018, Syed Saddiq faced criticism after his personal aide, Numan Afifi, resigned due to his involvement in LGBT activism.

And don't forget, whatever the policies that are to be formulated, whatever the level of openness, we must not ignore the Federal Constitution and the National Principles.

In September 2015, Saddiq said he would "teach" Nurul Hidayah, the daughter of ex-Deputy Prime Minister Ahmad Zahid Hamidi, who criticized participants in the Bersih 4.0 demonstration.

[56] He defended the actions of four academics who allegedly submitted an executive summary on the Rome Statute of the International Criminal Court (ICC) to the Conference of Rulers and insisted their actions were part of the academic freedom promised by Pakatan Harapan (PH) in celebrating democracy and differences of opinion in Malaysia.

Saddiq starts the video[59] with the hashtag #justiceforganapathy and goes on to describe the serious injuries inflicted on Ganapathy that ultimately led to his death.

[63] Syed Saddiq currently lives in Damansara, Selangor, Malaysia, where he also used the residence as his office and runs the day-to-day administration of the political party he led before, which is Malaysian United Democratic Alliance (MUDA).