Former President Donald Trump on Friday said he would no longer participate in a September debate on ABC, opting instead to accept Fox News’ offer to debate Vice President Kamala Harris on Sept. 4. The former president said the ABC debate was agreed to when President Joe Biden was the presumptive Democratic nominee “but has been terminated in that Biden will no longer be a participant.” Trump also cited his active defamation lawsuit against ABC and the network’s anchor George Stephanopoulos,...