What can Congress do if the President vetoes a law?

If the President vetoes a law, Congress can override a veto by passing the act by a two-thirds vote in both the House and the Senate. (Usually an act is passed with a simple majority.)

Explanation: I answered the same question the other day. :)

d) in the state of iowa

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.