Amid some speculation Donald Trump might try to replace him, Republican vice-presidential nominee JD Vance was asked on Tuesday if he would debate Vice President Kamala Harris’s just-announced running mate, Democratic Minnesota Governor Tim Walz. Vance appeared to ignore or not hear the question as he headed into his plane Tuesday morning. He told reporters he had called and left a message congratulating Gov. Walz. Later, Senator Vance said he thought Governor Walz’s record was a “ joke,” according to NBC News political reporter Allan Smith. READ MORE: Legal Experts Urge DOJ Criminal Probe Int…