WASHINGTON, July 10 (Reuters) - President Donald Trump for the first time since returning to office will send weapons to Kyiv under a presidential power frequently used by his predecessor, two sources familiar with the decision said on Thursday, a move suggesting new interest by the president in defending Ukraine.

A detailed timeline of events shows the White House was aware of an ordered pause in weapons to Ukraine in real time and Trump's decision to reverse the action.

President Donald Trump told NBC he struck a deal with NATO on Thursday for the US to send weapons to Ukraine through the alliance, and that NATO will pay for those weapons “a hundred percent.”

The Trump administration has resumed sending some weapons to Ukraine, a week after the Pentagon had directed that some deliveries be paused.

Following the Pentagon announcing a pause on weapons, the U.S. president said Ukraine must defend itself from Russia.

Rep. Eugene Vindman (D-VA) joins MSNBC’s Ali Velshi to discuss Donald Trump’s shifting explanation of the Ukraine weapons pause and why, according to Rep. Vindman, it’s “dangerous” that our “Commander-in-Chief is the last to know.

U.S. military and NATO officials are discussing a possible plan that could be unveiled in the coming days to provide Ukraine with much-needed aerial defense weapons.

Supporters of US President Donald Trump in the Senate are calling for an investigation into Defense Secretary Pete Hegseth, who reportedly suspended military aid to US allies, most notably Ukraine, without presidential approval,