James Talarico rode viral video fame to the Democratic nomination for U.S. Senate in Texas. Now Republicans want to turn years of candid on-camera musings against him. Conservatives are digging through Talarico’s social media history and finding a trove of progressive commentary on hot-button cultural issues like race, gender, religion and immigration. They hope it will torpedo his candidacy in a red state like Texas that Democrats have spent decades struggling to turn blue. Talarico was a