BOSTON (AP) –Democratic U.S. Sen. Elizabeth Warren, among her party’s harshest critics of President Donald Trump, has won re-election in Massachusetts.

Warren on Tuesday defeated Republican state Rep. Geoff Diehl, the Massachusetts co-chair of Trump’s 2016 campaign, and independent Shiva Ayaddurai.

READ MORE: New Memorial In Worcester Honors Firefighters Killed In Line Of Duty

Warren has generated considerable speculation about a possible run for the White House in 2020, recently saying she’d take a “hard look” at a presidential bid after the Senate race was over.

The former Harvard Law School professor recently released a DNA test suggesting that a distant ancestor was Native American, an effort to rebut Trump’s frequent mockery of her claim to Native American heritage.

READ MORE: 2 Extricated From Car After Crash In Medford

Diehl claimed Warren was ready to abandon Massachusetts to run for president.

Warren countered that Diehl, if elected, would be a rubber stamp in Washington for Trump’s agenda.

MORE NEWS: 'Loss Of A Beautiful Boy': Candlelight Vigil Held In Memory Of 5-Year-Old Elijah Lewis

(© Copyright 2018 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)