Who Is Cory Booker, The Democrat From New Jersey Holding The Senate Floor?

Sen. Cory Booker, who took hold of the Senate floor Monday night and held onto it Tuesday as he railed against President Donald Trump's Republican agenda, once found common ground with the president during his first term.

Booker, a New Jersey Democrat who ran an unsuccessful presidential campaign in 2020, expressed frustration bordering on exasperation at a host of Trump issues in his long Senate speech - from the possibility of annexing Greenland and Canada to slashing social programs and cutting taxes.

Booker's speech, occasionally interrupted by Democratic colleagues to whom he yielded for questions while catching his breath, came as Democrats are in the minority in the Senate and the House. It's unclear what effect Booker's speech could have, but it reflects one of the levers available to out-of-power parties.

Here's a closer look at who Booker is and what he's been saying:

Who is Booker?