[2] In August 2003 two HDZ members of Sabor, Ante Beljo and Dario Vukić, joined HIP, which made it a parliamentary party.

[3] In September 2003 Đuro Njavro, a former member of HDZ, also joined the party, which gave HIP a total of three MPs by the time the 4th Sabor assembly was dissolved in October 2003.

They created a minor upset by winning five seats in the 51-seat City of Zagreb municipal assembly, held by some of HIP's most prominent members including Miroslav Tuđman, former HDZ health minister Andrija Hebrang and navy admiral Davor Domazet-Lošo.

[5] In the following May 2005 local elections HIP ran on a coalition list with three other minor parties but failed to win any seats, getting 1.16 percent of the vote.

[7] They recorded their best result in District XI – the constituency for Croatian citizens living abroad – where they finished second behind HDZ with 9.73 percent of the vote.