[2] After the plurality result victory of Fidel Valdez Ramos (Lakas) as president in 1992, Pangasinan's Jose de Venecia (Lakas), from the 4th congressional district was tasked to create a multi-party coalition to solidify the House of Representatives: so the legislative agenda of the president could be passed into law.
The former members of the initial coalition were recruited into the newly formed Sunshine Coalition, with the addition of PDP–Laban, Reporma, Aksyon Demokratiko, Imee Marcos' Kilusang Bagong Lipunan (KBL), and Tomas Osmeña's Probinsya Muna Development Initiative (PROMDI).
[1] Additional rumors spread, asserting that there was a faction that was unhappy with De Venecia and would challenge his speakership.
[7] Ed Lingao, a former Philippine Center for Investigative Journalism personnel and TV5 News anchor opined on his segment News explainED that the formation of Rainbow Coalition caused the legislative branch, in 1992, to almost lose an opposition bloc.
Additionally, he asserted that the coalition did not have clear intentions or goals, and the characters of each political party "melted", and turned out to be all just the same.