All told, Clinton’s campaign and Democratic groups are spending nearly $9.3 million on television advertisements in seven swing states this week. Two Republican groups that back Trump are spending almost $1.9 million on advertising in five swing states.

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Trump’s campaign has yet to run a general campaign advertisement.

The data was provided to The Hill by sources keeping tabs on the advertising market.

Democrats’ four-to-one spending advantage exists in some of the most crucial states in the nation: In Florida, the Clinton campaign and Priorities USA Action are spending $2.3 million this week. The Rebuilding America Now PAC, a super-PAC run by Trump supporter Tom Barrack, is spending $555,000.

In North Carolina, a state President Obama put into play in 2008, Clinton’s campaign is spending $350,000. The Priorities super-PAC and Women Vote, another pro-Clinton group, are running a combined $907,000. The National Rifle Association is running $165,000 worth of ads on Trump’s behalf, while his super-PAC is dropping $191,000 into the state.

Clinton backers are spending a combined $1.78 million in Ohio this week, including $865,000 from the campaign. The NRA has dropped $254,000 into television ads across Ohio, and Rebuilding America Now PAC is spending $468,000. In Pennsylvania, where the Trump campaign hopes to woo blue-collar white voters, Democrats are spending a total of $1.6 million — eight times the $208,000 pro-Trump groups are spending.

In two swing states, Democratic ads are going unchallenged. Clinton’s campaign and two Democratic PACs are spending $1 million in Iowa. In New Hampshire, Democrats are spending $316,000. Republicans are not airing television advertising in either state this week.