Several Democrats vying to be their party’s presidential nominee are expressing concern about former Vice President Joe Biden after a female politician accused him of inappropriate contact during a 2014 campaign event.

Biden, meanwhile, continued his attempt at damage control as he weighs entering the 2020 field, issuing a carefully worded statement on Sunday.“Not once — never — did I believe I acted inappropriately,” he said.

Biden’s statement capped a long week in which the not-quite-candidate was rocked by a series of controversies, ending in a Friday essay in The Cut in which Lucy Flores, Nevada’s former Democratic nominee for lieutenant governor, accused him of an “awkward kiss” at a rally in 2014.

“He proceeded to plant a big slow kiss on the back of my head,” Flores wrote. “My brain couldn’t process what was happening. I was embarrassed. I was shocked. I was confused.”

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