Chuck Schumer and Nancy Pelosi are asking the FBI and DOJ to include more lawmakers in a meeting on the Russia investigation.
Rank-and-file voters who responded to Trump's gut-level appeals are considering new primary choices in a GOP under the president's control.
On Tuesday, West Virginia will join Indiana, North Carolina, and Ohio in hosting primary elections in states Trump carried in 2016.
President Trump tells West Virginia GOP primary voters not to support Don Blankenship, one of three Republicans vying for the nomination to face Sen. Joe Manchin.
Canada's dairy market is protected by high tariffs and has been a key bone of contention, but experts expect only slight concessions from Ottawa in NAFTA talks.
"It's a complicated relationship," Corker says of his ties with President Trump.
Trump raised concerns about Mueller's job security in a series of aggressive tweets over the weekend.
Jeff Flake, a Republican senator from Arizona, may run against President Donald Trump in 2020 either as a Republican or an independent - if no one else does.
Sen. Jeff Flake, who is not seeking re-election, has at times been a vocal critic of President Trump.
Texas Sen. John Cornyn says the speed at which Trump imposed tariffs suggests he didn't want to take a chance of being talked out of action.
The tariffs impose penalties of 25 percent on steel imports and 10 percent on aluminum imports.
CNBC has compiled a large set of internal polls from the pro-Trump nonprofit group.
America First Policies, a nonprofit group with close ties to President Donald Trump, has hired Trump's pollsters to conduct political polling.
Trump started to call for modest gun control measures following the shooting massacre of 17 people at a Florida high school last week.
The immigration proposal favored by Trump would shrink the labor supply and the economy's long-term growth potential.
A Goldwater-style Republican conservative can’t accept the age of Trump–and may even challenge him in 2020.
In a conversation with CNBC's John Harwood, Flake describes how he balances his conservative principles with his challenges to Trump.
Flake talks to CNBC's John Harwood about his fellow Arizona Republican Sen. John McCain, who is battling brain cancer.
"I think it was handled extremely poorly," the Arizona Republican tells CNBC's John Harwood.
CNBC's John Harwood talks to Sen. Jeff Flake. Here's what the Arizona Republican said about immigration.