Is growing pushback from conservative corners of the upper chamber a sign that Trump’s grip on his party may be slipping?

President Donald Trump may be the head of the Republican Party, but when it comes to the Senate, Majority Leader John Thune is still in charge.

President Donald Trump’s moves on housing, FISA, Iran and Washington projects are creating new headaches for Republicans trying to show voters they can govern.

Is growing pushback from conservative corners of the upper chamber a sign that Trump’s grip on his party may be slipping?