In this June 26, 2018, file photo, Rep. Barbara Comstock, R-Va., walks to a closed-door GOP strategy session at the Capitol in Washington. Two-term Rep. Barbara Comstock of Virginia is one of the most vulnerable Republicans in Congress in a year when Democrats are hoping to pick up dozens of seats and take control of the House of representatives. Democrat Jennifer Wexton, a state senator and former prosecutor, won a six-way primary for the right to take on Comstock in a northern Virginia district that has been held by the GOP for nearly 40 years. (AP Photo/J. Scott Applewhite, File)
The Latino Victory Fund's ad showed a pickup truck with a Confederate flag and an Ed Gillespie bumper sticker chasing down Muslim, Latino and black children, and accused the GOP candidate of spreading "hate."
People demonstrate against the GOP health care bill, Thursday, June 29, 2017, in Philadelphia. Senate Republican leaders considered keeping one of former President Barack Obama's big tax increases on wealthier Americans and using the money to fatten proposed subsidies for the poor in a bid Thursday to placate moderate GOP lawmakers and salvage their struggling health care bill. (AP Photo/Matt Slocum)
Senate Majority Leader Mitch McConnell, R-Ky., joined by Sen. John Thune, R-S.D., left, the Republican Conference chairman, and Sen. John Barrasso, R-Wyo., tells reporters he is delaying a vote on the Republican health care bill while GOP leadership works toward getting enough votes, at the Capitol in Washington, Tuesday, June 27, 2017. In a bruising setback, Senate Republican leaders are delaying a vote on their prized health care bill until after the July 4 recess, forced to retreat by a GOP rebellion that left them lacking enough votes to even begin debating the legislation, two sources said Tuesday. (AP Photo/J. Scott Applewhite)
Sen. Rob Portman, R-Ohio, pauses for a reporter's question as he arrives at a closed-door GOP strategy session on the Republican health care overhaul with Vice President Mike Pence, Senate Majority Leader Mitch McConnell, R-Ky., and others, at the Capitol in Washington, Tuesday, June 20, 2017. Sen. McConnell says Republicans will have a "discussion draft" of a GOP-only bill scuttling former President Barack Obama's health care law by Thursday. (AP Photo/J. Scott Applewhite)