Would it have had an affect on the presidential race in California?
I guess many Republicans stayed at home this year since they knew that neither Trump nor a GOP candidate for Senate would win their vote. That's why I assume that California voted even more Democratic than it had already done before.
In 2012, a very Democratic-leaning presidential year, Elizabeth Emken received 4,713,887 votes.
Hence, with a GOP candidate on the senatorial ballot, Clinton might have even lost her nationwide popular vote win.
This question is about Clinton's nationwide popular vote!
I say no. The argument is that some California Republicans stayed home due to no Republican Senator on the ballot... Okay maybe, but not 2.8 million of them.
Edit:
Her victory in California is just gaudy ridiculous. +4.3 million votes!?!?!
So outside of California she trails Trump by 1.5 million popular votes. That is amazing.