Meet the Press NOW – May 6

State Sen. Greg Walker (R-Ind.) joins Meet the Press NOW after many Trump-endorsed candidates oust several Republican incumbents in the state Senate primary race. NBC News Chief Data Analyst Steve Kornacki analyzes the election results and what they could mean for the midterms ahead. President Trump appears optimistic that a peace deal with Iran is within reach while also renewing his threat to bomb Iran if it doesn’t agree to a deal.