Former Vice President Joe Biden is leading Democratic primary polls, and all indications are that he intends to run for president in 2020. In this episode of the FiveThirtyEight Politics podcast, the crew discusses the kinds of challenges his campaign could face and whether those might deter him.

Recently, former Nevada legislator Lucy Flores wrote in New York Magazine that Biden touched her shoulders, smelled her hair and kissed her head at a campaign rally for her lieutenant governor bid in 2014. She said he made her feel “uneasy, gross, and confused.”

The team also assesses why Trump’s approval rating has not improved since the attorney general said in a letter to Congress that special counsel Robert Mueller had not found evidence of a Trump-Russia conspiracy in his investigations into Russian influence in the 2016 election.

Also: The podcast team is heading to Texas for live shows in Austin and Houston in early May. Find more information on tickets here.

You can listen to the episode by clicking the “play” button in the audio player above or by downloading it in iTunes, the ESPN app or your favorite podcast platform. If you are new to podcasts, learn how to listen.

The FiveThirtyEight Politics podcast publishes Monday evenings, with additional episodes throughout the week. Help new listeners discover the show by leaving us a rating and review on iTunes. Have a comment, question or suggestion for “good polling vs. bad polling”? Get in touch by email, on Twitter or in the comments.