Several Republican state committees have scrapped their respective primaries or caucuses. His campaign performed poorly in early Libertarian primaries and caucuses. Numerous candidates entered the Democratic Party presidential primaries. Several states have decided to cancel their primaries and caucuses. In the 2016 Democratic presidential primaries, Buttigieg endorsed Hillary Clinton. The Republicans also adopted many more state presidential primaries. In the 2016 Republican Party presidential primaries, she endorsed Donald Trump. He supported Marco Rubio in the 2016 Republican Party presidential primaries. It introduced public funding for presidential primaries and elections. He then ran as a candidate in the 2020 Democratic presidential primaries. Lewis supported Hillary Clinton in the 2016 Democratic presidential primaries against Bernie Sanders. He supported Dennis Kucinich in the 2004 Democratic Party presidential primaries. Booker previously was a candidate in the 2020 Democratic Party presidential primaries. Sebei endorsed Bernie Sanders in the 2020 Democratic Party presidential primaries. Bullock appears to have stayed neutral during the 2016 Democratic Party presidential primaries.