Sen. Bernie Sanders says he’s running for president in 2020

FILE - In this Jan. 30, 2019, file photo, Sen. Bernie Sanders, I-Vt., speaks at a news conference on Capitol Hill in Washington. Sanders, whose insurgent 2016 presidential campaign reshaped Democratic politics, announced Tuesday, Feb. 19, 2019 that he is running for president in 2020. (AP Photo/Andrew Harnik, File)

WASHINGTON — U.S. Sen. Bernie Sanders of Vermont said Tuesday that he again will seek the Democratic presidential nomination, a decision that will test whether he can still generate the progressive energy that fueled his insurgent 2016 campaign.