After the presentation to the group of elected Republican leaders, Ryan (R-Wis.) asked Sackett which of the Republican presidential hopefuls would be most detrimental to GOP House candidates on the ballot this year. Sackett replied that Cruz would have the biggest negative effect, citing the Texas senator’s starkly ideological positions, according to six sources who were in the meeting. Sackett told the group that the public’s perception of Cruz could shift if he becomes the nominee…

Sackett’s presentation confirmed those worries. His poll showed that a plurality of respondents — 48 percent to 40 percent — would be less likely to vote for a Republican congressional candidate or incumbent if Trump were the nominee. The business mogul and former reality TV star, who has been leading in most GOP polls for months, was the only candidate surveyed on that question, the sources said.