U.S. President Donald Trump, facing a potentially difficult path to winning a second term in November 2020, plans an official rollout to his re-election campaign in mid-June, the four-year anniversary of his first run, sources said Monday.

Trump is likely to kick off his campaign with a rally in Florida, possibly on June 15, followed in the days afterward with stops in battleground states, said the sources, who are close to the White House and spoke on condition of anonymity.

The date will be close to the four-year anniversary of when Trump rode the escalator at Trump Tower down to a crowd of supporters and announced his candidacy on June 16, 2015.