Republicans believed the contentious confirmation of Supreme Court Justice Brett M. Kavanaugh and concerns about the migrant caravan headed toward the U.S.-Mexico border would energize voters in conservative districts. Protests of Kavanaugh fueled their attacks casting Democrats as an angry mob.

But now some worry that the power of those arguments will fade over time, particularly as Trump and his allies face criticism in the wake of the deadly massacre Saturday at a Pittsburgh synagogue and mail bombs sent to prominent Democrats, liberal donors Tom Steyer and George Soros, and CNN. Critics have accused Trump and some backers of fostering an environment for far-right extremism…

Ryan will be in Kentucky on Tuesday to campaign for Rep. Garland “Andy” Barr, whose 6th District stretches from Lexington to more rural areas. Former fighter pilot Amy McGrath has given Democrats hope of flipping the seat, despite the district’s naturally conservative tilt.

Meanwhile, the NRCC plans to launch ads Tuesday in South Carolina’s 1st District, an area along the coast including Charleston that has leaned conservative in recent federal elections. But Republican nominee Katie Arrington has had trouble putting away her Democratic opponent, Joe Cunningham.