Washington (CNN) Donald Trump’s path to 270 electoral votes remains precarious — but with some breaks, he can get there.

Trump’s campaign has made clear exactly what its targets are. It is spending $25 million on TV ads in the final week of the campaign in Colorado, Florida, Iowa, Maine, Michigan, New Mexico, North Carolina, Ohio, Pennsylvania, Wisconsin, Virginia, Nevada and New Hampshire.

Those ad buys are based on the assumption that Trump doesn’t need extra help to keep Arizona, Georgia, Utah, Texas or any other traditionally red state in the Republican column.

Trump starts with four must-wins: Florida, Ohio, North Carolina and Iowa.

Those — plus making sure he doesn’t surrender other typically Republican states, and winning the one electoral vote that can come from Maine’s Second Congressional District — get Trump to 260 electoral votes.

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