Senator Bernie Sanders of Vermont will return to New Hampshire over Labor Day weekend to speak at a pair of events, continuing to stoke speculation that he could run a second time for president in 2020.

Sanders, who handily won the 2016 New Hampshire Democratic primary, will speak at an AFL-CIO breakfast before addressing a rally for a local political group formed in the wake of his presidential campaign.

While Sanders returned to New Hampshire often to campaign for Democrat Hillary Clinton in the general election, he has only been in the state once since the November 2016 election. He also visited Iowa last month.