Trump says aides need not testify to Congress amid growing power struggle

President’s remarks to Washington Post come as White House battles subpoenas and treasury misses deadline to provide tax returns

Donald Trump has said he is opposed to current and former White House aides testifying to congressional committees about special counsel Robert Mueller’s report on Russian election interference.

In an interview with The Washington Post, the US president claimed his administration cooperated with Mueller’s investigation and did not need to comply with congressional committees examining possible obstruction of justice on his part.

“There is no reason to go any further, and...