States do not receive votes in direct proportion to their size, point in fact. The cap on the number of Senators per state and the number of total Representatives means that smaller states are significantly overvalued in terms of electoral weight. Combine this with urbanisation and you get a situation in which a majority of people's votes matter less because they live in more populated states.
Implying this is a) a bad thing, and b) that candidates don't already ignore most states where the vote outcome is fairly certain in favor of otherwise irrelevant swing states.And it would completely disregard the states. Or more likely, candidates would only focus on major populated centers...(Buh-bye most red-states).
It's ultimately more likely the American system will simply crack under the strain. The jury is still out as to whether this is a bad thing.Now...before we go any further, to be clear, federal law...(US Constitution which respects the rights of states as entities unto themselves) doesn't have any provision for the popular vote. Which means it would take an Amendment to do. (Super-majority or Constitutional Convention) Far better and easier to simply get individual states to change the way they allocate Electoral votes.