Story highlights Trump has secured the Republican nomination

But some Republicans are looking for ways to remove him

Washington (CNN) Donald Trump's continued stumbles led The Wall Street Journal Monday to suggest that if he couldn't shape up by Labor Day, it might be time to "turn the nomination over to Mike Pence."

Replacing candidates on the ticket is fairly unprecedented, though Democrats replaced then-Sen. Thomas Eagleton on the 1972 ticket, following the revelation he used electroshock therapy.

Any effort to remove Trump as the Republican presidential nominee would be far-fetched. But here are the two ways that Trump could be replaced at the top of the ticket.

Trump removes himself

If Trump wanted out, he would have to alert the Republican National Committee, which would then have to convene and decide who to replace him with. The 168 members of the RNC would then vote to approve a new nominee.

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