Hutchison made the announcement Monday while speaking to supporters in Dallas. Her campaign posted a brief note about her fundraising total on the online message site Twitter and on her campaign Web site.
Last week, Perry announced his campaign raised $4.2 million over a nine-day period at the end of June. That's the only time he could raise money the first half of the year because of the Texas legislative session.
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Hutchison and Perry are facing off in a Republican primary in March 2010 that's expected to be rough and expensive.