Former governor of Indiana, Mike Pence had chose to attend the match of the Indianapolis Colts, to pay tribute to the former quarterback star Peyton Manning, who was to be honored at a ceremony Sunday.
After Pence issued his statement, Trump used Twitter to say he had told his vice-president to walk out if any protests occurred during the anthem.
Vice President Mike Pence and Second Lady Karen Pence sit in the crowd prior to the start of the national anthem at the NFL football game between the Indiana Colts and the San Francisco 49ers at the Lucas Oil Stadium in Indianapolis.
Pence, who has gone out of his way to demonstrate loyalty to Trump, said in his statement it was important to rally around the flag and things that unite the country.
President Trump tweeted that he asked Pence to leave the stadium.
Critics of players kneeling at the pre-game playing of the national anthem, including Trump, object to any protest, regardless of its merits, during a ceremony meant to honor the US flag and military veterans.
Pence has followed President Trump's lead by criticizing players who do not stand for the anthem.
The controversy over anthem protests had largely died down when President Trump made a decision to revive it in late September 2017, arguing that the protests were disrespectful to the flag and to the armed forces. "While everyone is entitled to their own opinions, I don't think it's too much to ask NFL players to respect the Flag and our National Anthem".
Instead, Pence spent most of Saturday honoring victims of the Las Vegas shooting before returning to his home state.