Scott Brown attending GOP convention; McCaskill skipping Democrats’

Scott Brown is going to the GOP convention, Claire McCaskill is skipping the Democratic convention, and Mitt Romney says Obama’s first term will be a waste if Obamacare is overtuned.

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FIRST ON THE FIX:

Sen. Scott Brown (R-Mass.) will attend the Republican National Convention, his office tells The Fix. Numerous Democrats have said they will skip their convention, but Brown and Rep. Robert Dold (R-Ill.), who represent the most Democratic-leaning state and district held by a Republican, respectively, have both said they will be there in Tampa.

WHAT YOU MIGHT HAVE MISSED:

* Sen. Claire McCaskill (R-Mo.) is not attending the Democratic National Convention. An aide told Talking Points Memo that “in years when Claire is on the ballot, she has historically not gone to the convention.” Other vulnerable Democrats are skipping the event, but McCaskill’s high profile as an Obama surrogate in 2008 makes her decision somewhat surprising.

* If the Supreme Court strikes down the Affordable Care Act, Obama’s first term will have been a total waste, Mitt Romney said today. “[I]f ObamaCare is not deemed constitutional, the first three and a half years of this president's term will have been wasted on something that does not help the American people,” the former Massachusetts governor told a Virginia crowd.

* Virginia Gov. Bob McDonnell (R) said Tuesday morning that he’s “not discussing the vice presidential vetting” — a different answer than the one he gave a month ago, when the governor said he was not being vetted. “Apparently there’s vetting going on I don’t think it’s appropriate for me to talk about it,’’ McDonnell told listeners of his monthly radio show.

* Sen. Rand Paul (R-Ky.) has attached a “fetal personhood” amendment to an uncontroversial flood insurance bill, holding up the legislation. Sen. Harry Reid (R-Nev.) called the amendment, which would grant rights to embryos from conception, “ridiculous” and is threatening to stall the original bill.

WHAT YOU SHOULDN’T MISS:

* Rep. Justin Amash (R-Mich.) has endorsed Kerry Bentivolio in Michigan’s 11th district. Thanks to filing screw-ups by Rep. Thaddeus McCotter (R), Bentivolio — a farmer/teacher — is the only Republican on the ballot in this GOP district. But former state Sen. Nancy Cassis is mounting a write-in campaign and has the establishment support, so Amash’s decision is interesting. Both Amash and Bentivolio are Ron Paul fans. (Meanwhile, McCotter is donating his remaining campaign cash to St. Jude’s Children’s Research Hospital).

* The Democratic Senatorial Campaign Committee is reserving $1.2 million of airtime in North Dakota for the state’s surprisingly competitive Senate race. The most recent public polling shows Rep. Rick Berg (R) and former state attorney general Heidi Heitkamp (D) tied. The ads will run from October 2 through Election Day.

* Indiana GOP Chairman Eric Holcomb will be in Washington Thursday night to promote his book, “Leading the Revolution.” Holcomb focuses on what he learned as campaign manager and then aide to Gov. Mitch Daniels (R), and he’ll be talking about that at the American Gas Association.

* There are all sorts of primaries tonight — Colorado, New York, Oklahoma, South Carolina, and Utah are all voting. Confused? Scared? Just read our what-to-watch-for guide; we’ll have all the important results on The Fix.

THE FIX MIX:

Getting fancy with bagels.

With Aaron Blake