TUESDAY’S MINI-REPORT…. Today’s edition of quick hits:

* The Senate tried again to start a debate on Wall Street reform. And once again, Republicans and Ben Nelson refused to let the debate begin. The vote was 57 to 41, just like yesterday. (The negative press apparently didn’t faze them.)

* Uh oh: “Greece’s credit rating was lowered to junk status Tuesday by a leading credit agency, a decision that rocked financial markets and deepened fears that a debt crisis in Europe could spiral out of control.”

* It led to an unpleasant day on Wall Street.

* Krugman evaluates the situation and warns of a “cohesion crisis.” He concluded, “It’s getting a bit scary out there.”

* At the same time, however, we learned that U.S. consumer confidence rose in April, reaching its highest level in 19 months.

* Interesting day on the Hill: “Blistered by lawmakers for ‘unbridled greed,’ Goldman Sachs executives on Tuesday unflinchingly defended their conduct and denied the huge Wall Street investment bank helped cause the near-meltdown of the nation’s financial system.”

* The Mexican government has warned its citizens about visiting Arizona. That’s probably a good idea.

* Good: “The National Institutes of Health will announce Tuesday that four additional lines of human embryonic stem cells are now eligible for federal funding, including the most widely used line.”

* Keep an eye on this: “Senate Majority Leader Harry Reid (D-Nev.) maintained Tuesday he will bring up climate legislation ahead of an immigration bill, noting the former ‘is much farther down the road in terms of a product.’”

* President Obama’s “Main Street Tour” reaches Iowa.

* It’s like the C. Montgomery Burns Chair in Business Administration.

* Great Eugene Robinson column on Arizona, Tea Partiers, and immigration: “Isn’t the whole premise of the Tea Party movement that overreaching government poses a grave threat to individual freedom? … Or is there some kind of exception if the people whose freedoms are being taken away happen to have brown skin and might speak Spanish?”

* Yeah, I remember when calling the president a “racist” used to be controversial, too.

Anything to add? Consider this an open thread.

Steve Benen

Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.