President Trump's slumping job approval numbers and the public controversies swirling around his second term in office are putting a strain on his relationship with GOP senators, who are looking for ways to distance themselves from the president heading into the November midterms. Republican lawmakers are pushing back on Trump and his administration on a dizzying range of issues, including the potential deployment of troops to Venezuela, the threat to seize Greenland, the criminal investigation of Federal Reserve Chair Jerome Powell, invoking the Insurrection Act in Minneapolis and capping credit card fees.