The Pew Research Center survey found that 20 percent of viewers who watched at least some of last week’s Republican National Convention coverage described Clint Eastwood’s speech (during which he addressed an empty chair meant to symbolize President Obama), as the highlight of the convention. Seventeen percent said Mitt Romney’s speech was the highlight. More Republicans ranked Romney as the convention highlight than they did Eastwood (25 percent to 19 percent). Fifteen percent of Republicans thought vice presidential nominee Paul Ryan’s speech was the highlight, and 13 percent said the same of Ann Romney’s speech. Eastwood had the advantage over Romney among independents — 26 percent named the director/actor as the convention highlight while 19 percent named Romney. Forty percent of Democrats said there was no highlight at all, and 20 percent of viewers overall said the same thing, according to Pew. The national survey was conducted August 31 through September 3 among 1,008 adults.