Warren on Trump administration: 'God, it's like dog years'
© Greg Nash

Sen. Elizabeth WarrenElizabeth Ann WarrenSenate Dems hold floor talk-a-thon against latest ObamaCare repeal bill Trump bets base will stick with him on immigration Dems call for action against Cassidy-Graham ObamaCare repeal MORE (D-Mass.) is urging Democrats to focus on combatting the Trump agenda, lamenting that he's been in the White House for less than 100 days.  

Warren declined to speculate if she could have won the party's nomination in 2016 or if Sen. Bernie SandersBernard (Bernie) SandersOvernight Defense: Senate passes 0B defense bill | 3,000 US troops heading to Afghanistan | Two more Navy officials fired over ship collisions Senate passes 0B defense bill Dems fear lasting damage from Clinton-Sanders fight MORE (I-Vt.) would have faired better against Trump than Hillary ClintonHillary Diane Rodham ClintonBiden slams Trump over golf gif hitting Clinton Overnight Cybersecurity: Equifax hit by earlier hack | What to know about Kaspersky controversy | Officials review EU-US privacy pact Overnight Tech: Equifax hit by earlier undisclosed hack | Facebook takes heat over Russian ads | Alt-right Twitter rival may lose domain MOREtelling USA Today, "We are where we are."
"Donald TrumpDonald John TrumpBiden slams Trump over golf gif hitting Clinton Trump Jr. declines further Secret Service protection: report Report: Mueller warned Manafort to expect an indictment MORE has only been here, not even 100 days yet — God, it's like dog years or something, it feels like so much has gone on. We've got to get focused on what we're going to do in the next week, in the next month. This man is truly dangerous," she said. 
Warren — who joined the Senate in 2013 and quickly became a liberal favorite — details in her new book why she decided against running in 2016.
She's up for reelection to her Senate seat next year and is expected to run for a second term.
Questioned on if she regrets not running last year, Warren said what she regrets is that Trump is president "full stop, right there. ... [But] he is and we've just got to go forward."
Warren normally doesn't speak with reporters in the Capitol. But she's become one of the caucus's most vocal critics of Trump on social media and has been using the Senate floor to denounce his policies and comments. 
She added in her USA Today interview that Democrats need to pick their battles with Trump, including avoiding responding to every social media post from the Twitter-friendly president. 
"On the one hand, you've got to be in the fight, but ... you can't shoot at everything that moves," she said. "We cannot engage Donald Trump on every crazy 3 a.m. tweet." 
She added that Democrats need to "kind of pick your shots — even though he's everywhere, all the time — and really fight back on the things that matter."