Jessica Leeds, Samantha Holvey and Rachel Cooks held a press conference in L.A. Monday -- detailing their alleged experiences with Trump -- and asked Congress take a closer look into their claims.

Among the allegations -- Cooks says Trump forcibly kissed her in 2005, and Leeds claims Trump grabbed her breasts and tried putting his hand up her skirt during a flight to NYC more than 3 decades ago.

The news conference comes one day after U.S. ambassador to the United Nations Nikki Haley said anyone claiming they're victims of sexual misconduct should be heard.