Assad and those who appose his reign have chemical weapons and have used those weapons. The US and the UN has had numerous occasions to take action but have remained on the sideline of this civil war. President Trump has consistently been a staunch advocate of staying out of the civil war and strongly advised in 2013 that involvement wasn't in our best interest as aa country. Although Russia is as guilty of using chemical weapons as Assad this time, President Trump is guilty of using the gassing of the Syrians as a prop to convince Xi of the US serious intentions concerning N Korea. There is an other party to this farce, Congress, they have consistently apposed involvement in the Syrian Civil War even when given better opportunities to intercede and give shelter to Syrian refugees fleeing the war. They now are supporting this attack which will not deter further attacks unless the US or the UN chooses to confront Syria and Russia both. They have given false hope to the Syrian people and reduced their deaths by chemical weapons to stage props. Leave this to the UN!