1.   A two-thirds majority in both Houses of Congress is needed to overturn a presidential veto.

2.   However, the measure faces a certain presidential veto if it clears the Senate.

3.   If Congress and the administration are to avoid a head-on clash, and a presidential veto, a compromise must be struck.

4.   It is not smart politics to sit back and wait for presidential vetoes and proclamations to bail us out of every jam.

5.   The Senate had a sufficient majority to override the presidential veto .

6.   With those southerners on board, Mr Edwards believes Congress May have a chance of overriding another presidential veto.

7.   Parliament would have the power to override presidential vetoes on legislation with a two-thirds majority.

8.   He predicted that Democrats would support it because it had the greatest chance of securing enough backing to become law by overriding a presidential veto.