A sense of concern is growing inside the top ranks of the Democratic Party that leaders of Joe Biden’s campaign and the Democratic National Committee are not taking seriously enough the impact of the president’s troubling debate performance earlier in the week. DNC Chairman Jaime Harrison held a Saturday afternoon call with dozens of committee members across the country, a group of some of the most influential members of the party. Multiple committee members on the call, most granted anonymity to talk about the private discussion, described feeling like they were being gaslighted — that they were being asked to ignore the dire nature of the party’s predicament.