July 10 (Reuters) - U.S. President Donald Trump on Wednesday scored a crucial victory in a Democratic-backed lawsuit that accuses him of violating anti-corruption provisions of the U.S. Constitution with his Washington hotel.

The Richmond, Virginia-based 4th U.S. Circuit Court of Appeals issued a set of decisions instructing a lower court judge to dismiss the lawsuit filed against the Republican president in June 2017 by the Democratic attorneys general of Maryland and the District of Columbia.

The court said the attorneys general lacked legal standing to bring the case.

A spokesman for D.C. Attorney General Karl Racine did not immediately respond to a request for comment.

Todays pair of decisions by the 4th Circuit Court of Appeals is a complete victory, Jay Sekulow, a lawyer for Trump, said in a statement. This latest effort at presidential harassment has been dismissed with prejudice.

Trump opened the Trump International Hotel, just blocks from the White House, shortly before he was elected in November 2016. Unlike past presidents, he has retained ownership of numerous business interests, including the hotel, while serving as president.

Since his election, the hotel has become a favored lodging and event space for some foreign and state officials visiting the U.S. capital.

The lawsuit alleges that, in failing to disengage from the hotel, Trump has made himself vulnerable to inducements by foreign governments seeking to curry favor, violating the Constitution.

Maryland-based U.S. District Judge Peter Messitte last year allowed the lawsuit to proceed, a ruling that Trump appealed to the 4th Circuit.

All three of the judges who heard the appeal were appointed by Republican presidents.

(Reporting by Jan Wolfe; editing by Jonathan Oatis)