If the president were to die today, what happens in terms of the election?

No, it has not happened in the US. And the national committee would nominate a new candidate for the ballot. But it would not necessarily be the vice president getting the nomination.

If the winner dies between the election and the casting of the electoral ballots in December, the electors may vote for someone else. If the winner dies between the casting of the electoral ballots and the electoral ballots being counted when Congress convenes, the electoral votes would be invalid, and the House would vote for a new President. The rules for that are that each State delegation gets one vote.

But the Vice President would become President until the inauguration.

Can you imagine how fast it would get ugly? When the smoke cleared, the ticket would be Joe Biden/Hillary Clinton.

Speaking of which, how come We didn’t see Hillary’s face at the convention? Or at least, I didn’t, and I watched a lot of it.

@wundayatta I read in an article that is was due to PR. Apparently foreign relations needs to appear above politics. I don’t know how much of a factor security might have played, if any.

As for the OP: It could be like what happened with LBJ. More likely that the DNC would select another candidate, I think.

@filmfann , it could be Clinton/Biden not Biden/Clinton if they wanted to win.
Has anyone besides me seen an escalation in the threats against the president? Reading comments on news posts onnfacebook can be really scary.

@ninja_man – That scenario isn’t what I was asking. LBJ became president in November of 1963 after Kennedy’s assassination. He chose to run in 1964, and was nominated at the convention in Atlantic City. If I were to put this in the current context, I know that if President Obama died, VP Biden becomes president until the inauguration of whoever becomes president. My question was about what happens regarding the nomination for president should Obama die prior to election. (Which @zenvelo answered.)

Apperently, from what i read, it means that the 3rd place candidate will take the place of the dead one.