President Trump took to Twitter Friday to call out the NFL on their national anthem policy.

Why it matters: NFL owners have displayed a fear of Trump before, and his policy demand may be taken more seriously because of it. His tweet follows closely behind the NFL's announcement that the league would put off an official national anthem policy until its next collective bargaining agreement was negotiated. It also comes after the Miami Dolphins' announcement that they had not made a decision on their team anthem policy after initial reports saying they would suspend players.