Already considered a likely Democratic 2020 presidential candidate, Elizabeth Warren's profile has been boosted yet further after she was rebuked by the Senate for quoting Coretta Scott King on the Senate floor.

A heroine on the populist left and one of Democratic party's stars, Mrs Warren is known for her progressive ideas and was the only female candidate touted to be Hillary Clinton's running mate last during the presidential campaign.

Despite being elected as a senator less than four years ago, she has swiftly gained national recognition. The Republicans helped propel the Massachusetts Democrat into the spotlight once again when she read a three-decade-old letter from Dr. Martin Luther King's widow that dated to Sen. Jeff Sessions' failed judicial nomination three decades ago.