There was an ambush massacre of cops in Dallas last night at the end of what had been a peaceful Black Lives Matter protest. For some reason, one ex-deadbeat-dad congressman's response is trending on Twitter and making the news:

As violence erupted in downtown Dallas during a deadly ambush on police, one ex-Congressman immediately blamed President Obama -- and threatened his life.

Former Illinois Rep. Joe Walsh declared "war" on Obama and Black Lives Matter protesters in a now-deleted tweet during the Dallas chaos....

... He deleted the tweet after fierce backlash, and later wrote that he "wasn't calling for violence, against Obama or anyone."

However, that didn't stop him from targeting the President and protesters in a series of hateful tweets spewed over four hours.

Yeah, Walsh fired off a lot of tweets in response to this. "When Obama goes after cops it opens the door for anti cop rhetoric and action." "10 Cops shot. You did this Obama. You did this liberals. You did this #BLM." "Obama says Cops are racist so 2 uneducated black thugs shoot 10 Dallas Cops tonight, killing 4. Wake up silent majority. Stand w our Cops." "It's time 4 patriotic Americans to stand up & stand against all the Cop haters - from Obama to the thugs on the street."

But I don't know why Walsh is being singled out. He's far from alone. Here's Pam Geller:

Obama’s racist campaign of division and discord exploded tonight in Dallas, Texas just hours after he made a hate speech inciting to violence.

And Matthew Vadum at FrontPage Mag:

Is the race war Barack Obama wanted breaking out in Dallas and across America?

... President Barack Obama, who a decade ago promoted inter-racial warfare in Kenya, has long tried to provoke civil unrest here in the U.S. with his hateful anti-cop rhetoric and his relentless demonization of opponents. His goal is fundamental transformation of the United States. A Red diaper baby who identifies violence-espousing communist Frantz Fanon as an intellectual influence, he has also steadfastly refused to condemn the explicitly racist, violent Black Lives Matter movement. In fact Obama has lavished attention on the movement’s leaders and invited them to the White House over and over again.

And full-time provocateur and part-time Milwaukee County sheriff David Clarke, a frequent Fox News guest:

American needs Obama to get out of bed & address Dallas situation NOW. He poured gas on this situation with his dog whistle message earlier.

— David A. Clarke, Jr. (@SheriffClarke) July 8, 2016

And Wayne Allyn Root, a right-wing pundit and onetime Trump rally emcee:

B) What is President Obama responsibility in this? His irresponsible rhetoric & propaganda have divided this nation.

— Wayne Allyn Root (@WayneRoot) July 8, 2016

And various randos:

BREAKING:
Dallas Authorities release sketch of a man who helped facilitate the slaughter of Dallas Police Officers! pic.twitter.com/YNhkTIA84b

— Dr. Frank Corleone (@DaGodfather907) July 8, 2016

I have a sinking feeling that Barack is smiling his smug little smile, knowing what happened in Dallas tonight.

— andieiam (@andieiamwhoiam) July 8, 2016

And Christ, we haven't even heard from Trump yet.

Walsh is a loathsome SOB, but he's being unfairly singled out. The notion that these shootings were Obama's fault will be mainstream on the right very soon. There'll be members of Congress who say this. There'll be state and local Republicans who call for Obama arrest or impeachment or execution.

I'm angry about what happens to too many black people at the hands of bad cops. Nevertheless, what happened in Dallas last night was despicable. But if you hate the president more than you hate the people who actually shot those cops, you're a disgrace.

Crossposted at No More Mr. Nice Blog