AEI Says Goodbye  —  I have been a resident fellow at the American Enterprise Institute since 2003.  At lunch today, AEI President Arthur Brooks and I came to a termination of that relationship.  —  Below is the text of my letter of resignation. … Follow David Frum on twitter: @davidfrum

President Obama to repeal-minded Republicans: ‘Go for it’  —  President Barack Obama on Thursday flipped into campaign mode and dared Republicans to repeal the healthcare law.  —  With his signature agenda item signed into law, Obama switched from selling the bill to aggressively promoting …

Cantor Says Campaign Office Was Shot At, Accuses Dems of Exploiting Threats  —  Republican Rep. Eric Cantor said Thursday that his Richmond campaign office has been shot at and that he's received “threatening e-mails” — but at the same time accused top Democrats of trying to exploit …

Binyamin Netanyahu humiliated after Barack Obama ‘dumped him for dinner’  —  Giles Whittell, Washington, and James Hider, Jerusalem  —  For a head of state to visit the White House and not pose for photographers is rare.  For a key ally to be left to his own devices while the President withdraws …

“White Powder” Package Sent to Congressman Weiner's Office  —  Letter references “health care” vote  —  Law enforcement officials say a package with white powder was sent to Congressman Weiner's Queens office today.  —  A preliminary review shows the letter in part complained …

Social Security Payout to Exceed Revenue This Year  —  The bursting of the real estate bubble and the ensuing recession have hurt jobs, home prices and now Social Security.  —  This year, the system will pay out more in benefits than it receives in payroll taxes, an important threshold …

Senate Passes Set of Changes to Health Care Overhaul  —  WASHINGTON — After running through an obstacle course of Republican amendments and procedural objections, the Senate on Thursday afternoon approved of a package of changes to the Democrats' sweeping health care overhaul …

11 predictions for the health-care reform bill  —  I'm a little confused by this post Megan McArdle has written saying that I refuse to make testable predictions regarding the eventual impact of health-care reform.  As I told her in the e-mail exchange that led to her post …

Gates Sharply Limits 'Don't Ask, Don't Tell'  —  Changes Will Make It Difficult to Remove a Service Member Who Does Not Come Out as Gay  —  In a major victory for opponents of the military's ban on open homosexual service, Defense Secretary Robert Gates significantly revised how the Pentagon …

Breaking: Perdue will sue feds over health care on his own  —  By Jim Tharpe/jtharpe@ajc.com and Aaron Gould Sheinin/asheinin@ajc.com  —  Gov. Sonny Perdue said Thursday he will appoint a “special attorney general” to challenge federal health care legislation signed into law this week by President Obama.

GOP senators warn Obama of using recess appointment for labor board  —  All Senate Republicans wrote President Barack Obama on Thursday, demanding he not use a recess appointment to fill spots on a labor board.  —  Sens. Orrin Hatch (R-Utah) and John McCain (R-Ariz.), joined …

OfA fundraises off threats  —  The Democrats continue to take political advantage of reports of Republican vandalism and threats, with the head of the Obama campaign organization, Mitch Stewart, referring to the incident at Tom Perriello's brother's house in a fundraising appeal.  —  He writes:

NPR Changes Abortion Language  —  Last week, I wrote a post about how NPR identifies people who support or oppose abortion.  It engendered a lively debate inside and outside NPR.  Today, some top editors got together to review the 2005 policy and decided to no longer use “pro-choice” or “pro-life.”

Obama administration to order lenders to cut mortgage payments for jobless  —  The Obama administration plans to overhaul how it's tackling the foreclosure crisis, in part by requiring lenders to temporarily slash or eliminate monthly mortgage payments for many borrowers who are unemployed, senior officials said Thursday.

Tea partiers air doubts about Armey  —  It seemed a strange fit to begin with — a former House Republican leader turned $750,000-a-year Washington lobbyist who resurfaced as perhaps the single most identifiable leader of a populist, anti-Washington movement.

ObamaCare Day One  —  Companies are already warning about higher health-care costs.  —  Democrats dragged themselves over the health-care finish line in part by repeating that voters would like the plan once it passed.  Let's see what they think when they learn their insurance costs will jump right away.