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“It’s going to be a close election, people,” Mrs. Carnahan said, speaking at a Wednesday-morning breakfast in Charlotte, N.C. “We know our state. We know this is going to be a dogfight down to the end.”

But some Republicans have given up hope of winning the Senate seat, even though they once considered it one of their most likely pickups.

CONVENTIONS

Democrats’ convention scores more tweets than GOP’s

The Democratic National Convention in Charlotte, N.C., looks set to eclipse last week’s Republican gathering — at least on Twitter, according to the microblogging site’s figures.

In a blog post, Twitter’s head of government affairs, Adam Sharp, said that after just one day of the Democratic event, more than 3 million tweets using the hashtag #DNC2012 had been sent about it.

That compares with about 4 million tweets using the hashtag #RNC2012 sent during the entire three-day Republican National Convention last week.

Tens of thousands of tweets about first lady Michelle Obama’s keynote speech Tuesday night were sent, Mr. Sharp said, peaking at the rate of 28,003 per minute at its conclusion — nearly double Republican presidential nominee Mitt Romney’s peak of 14,289 per minute.

Even San Antonio Mayor Julian Castro, whose speech peaked at 11,503 tweets per minute, “drove more Twitter conversation than any #GOP2012 speaker except for Governor Romney,” Mr. Sharp said.

TEXAS

State officials urged not to defund Planned Parenthood

AUSTIN — State lawmakers, hospital system administrators and dozens of women urged Texas officials Tuesday not to sever funding to Planned Parenthood under a law barring state support for clinics affiliated with abortion providers.

A smaller, but no less vocal, number of people opposing abortion turned out to applaud the move during an emotionally charged public hearing.

Officials are working to exclude Planned Parenthood clinics that provide family planning and health services to poor women as part of the Texas Women’s Health Program after the Republican-led Texas Legislature passed a law last year banning funds to organizations linked to abortion providers.

Planned Parenthood provides cancer screenings and other services — but not abortions — to about half of the estimated 130,000 low-income Texas women enrolled in the program, which is designed for women who might not otherwise qualify for Medicaid.

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