Warren, who has said that she would "take a hard look" at a 2020 run after the midterms, is building a national political operation and has increasingly gone on the offensive against Trump and Republicans up and down the ballot in recent months.
The bulk of campaign spending by political action committees is being deployed in just 10 of the most competitive Senate races — and there's much more to come as the midterm election nears.
A recent analysis showed that health care was the most common subject of televised advertisements by Democrats. On the other hand, GOP candidates are touting closeness with President Trump.
Sen. Dean Heller's vote for Obamacare repeal is perhaps the biggest issue in his re-election bid as President Donald Trump comes to Nevada to give the Republican incumbent a boost.
An ongoing and widening trade war poses political risks for Republicans as they try to stop Democrats from taking House and Senate majorities in November's midterms.
As of mid-September, roughly 40 percent of the more than half a billion dollars in direct contributions raised by Senate candidates had flowed into 10 battleground races that will decide control of the chamber.
A CNBC analysis of the latest campaign finance data finds that Democrats in eight of nine key battleground states have generated a substantial fundraising advantage, raking in far more cash than their GOP opponents.
All of them could soon be targeted by pro-Trump political action groups trying to unseat Democrats in the states Trump won in the 2016 presidential election.
A handful of swing vote senators will get to decide whether Trump's nominee — likely a young conservative — will make it on the Supreme Court.
America First Policies is preparing to unveil a seven-figure ad campaign to back Trump's choice to replace the retiring Justice Anthony Kennedy.
CNBC keeps track of President Donald Trump's most outrageous and news-making statements each week, so you don't have to.
Trump defended Jordan en route to a rally in Montana, where he is expected to stump for GOP candidates in the midterm elections.
Though he has faced an onslaught during a competitive re-election bid, Democratic Sen. Jon Tester has made little effort to appease President Donald Trump.
The political network funded by billionaire Charles Koch is planning to release attack ads targeting seven senators for voting against President Trump's $15.4 billion spending cuts package.
The primary election results in states such as California, New Jersey and Iowa will help to determine whether Republicans keep their House majority.
Races in California, New Jersey and Iowa will have a major role in which party holds the House after November.
For years sidelined on the national political fringe, California has lurched to the center of the fight for control of Congress.
Jackson's nomination to lead the VA was torpedoed by allegations of professional misconduct. Some of those allegations have been disputed by the White House and the Secret Service.
Trump's CIA pick Gina Haspel writes that the brutal interrogation program "is not one the CIA should have undertaken."
Joe Manchin is the first Democrat to commit to supporting Trump's CIA pick, Gina Haspel.