CNN’s Scott Jennings conceded that Kamala Harris effectively introduced herself to voters in her acceptance speech, but his fellow panelists jumped all over his claims that Donald Trump remains in a strong position heading into next month’s debate. The conservative commentator credited the vice president for her improved political skills and agreed the Democratic National Convention had been a success, but Jennings argued that she did not accept responsibility for the attacks Republicans have leveled at her tenure alongside president Joe Biden. “She seemed plausible, this speech I agree, it di…