Protesters hung a giant "Impeach Trump" banner at the Washington Nationals opening day game in Washington, D.C., on Monday.

President Trump was invited to throw out the ceremonial first pitch at the season-opener at Nationals Park, but declined, bucking a tradition that began with President William H. Taft.

Protestors after the Nats game unfurl a banner. "Impeach Trump Resist" pic.twitter.com/e3q4ZKKK14 — Kevin Baron (@DefenseBaron) April 3, 2017

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Protesters unfurled the display after the end of the game, The Washington Post reported. The banner was hung from the observation deck above the first-base side, according to the report.

The Nationals beat the visiting Miami Marlins 4-2 in Monday's game.