US senators have issued a bipartisan call to lower American flags in honour of John McCain after the White House raised its Stars and Stripes back up.

Top Democrat Chuck Schumer and top Republican Mitch McConnell said flags on all government buildings should be at half-staff for the late senator.

President Donald Trump has long feuded with McCain, and is reportedly not invited to his funeral.

The Arizona Republican died on Saturday of brain cancer.

President Trump ordered the flags to fly at half-staff on Saturday evening. But they were flying at full-staff by Monday morning, even as the flags at the US Capitol remained at half-staff.

Some said the White House was simply following proper procedure because US Flag Code states that flags be lowered “on the day of death and the following day for a Member of Congress”.

However, others pointed out it is traditional to keep flags lowered to honour lawmakers and major public figures until their funerals.

On Monday, Mr Schumer and Mr McConnell asked for the flags to remain at half-staff until sunset on the day of McCain’s burial on Sunday.