How can the president check the actions of the legislative branch

The President can provide a check on the legislative branch by choosing to veto legislation that the Legislative branch presents to the Presidency for signature.

The Legislature can check the President's check by overriding the veto, if they have the votes.

in 476 c.e. romulus, the last of the roman emperors in the west, was overthrown by the germanic leader odoacer, who became the first barbarian to rule in rome. the order that the roman empire had brought to western europe for 1000 years was no more.