San Francisco: US President Donald Trump is challenging a federal appeals court ruling which held that the law did not permit him to block users on Twitter, media reports said. The US Justice Department filed papers late on Friday, seeking reconsideration of the case by 2nd US Circuit Court of Appeals in New York, CNN reported. The 2nd US Circuit Court of Appeals is yet to confirm whether it would rehear the case. In July, a three-judge panel decided that blocking Twitter users from following or interacting with the account of the US President (@realDonaldTrump) amounted to violating the US Constitution. (IANS)