A survey of Oregon voters in 2008 showed 76% overall support for a national popular vote for President.

Support was 82% among Democrats, 70% among Republicans, and 72% among independents.

Every voter, everywhere, for every candidate, would be politically relevant and equal in every presidential election. Every vote would matter in the state counts and national count. 

The bill would give a voice to the minority party voters for president in each state.  Now they don't matter to their candidate.   
				
And now votes, beyond the one needed to get the most votes in the state, for winning in a state, are wasted and don't matter to presidential candidates.  

In state polls of voters each with a second  question that specifically emphasized that their state's electoral votes would be awarded to the winner of the national popular vote in all 50 states, not necessarily their state's winner, there was only a 4-8% decrease of support.
	
NationalPopularVote