National Security Adviser Susan Rice last week called the speech "destructive."
New poll finds many Americans have never heard of Israeli prime minister.
The summit takes place days before Netanyahu addresses Congress.
The national security advisor said "a degree of partisanship" was injected into relationship.
Rep. Jerry Nadler says the squabble "is not ultimately that important."
A group of Dems says Israeli leader is being used as a tool against Obama.
Rep. Ryan Zinke, a former Navy SEAL, slammed the White House event.
To maintain that image, what better prop than a security-themed speech before Congress?
Panetta said he hopes a "partisan presentation" is avoided.
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More than half of Congress's 27 Jewish Democrats have committed to attending the speech.
"He doesn't speak for me," Sen. Dianne Feinstein said.
By accepting Boehner's nontraditional invitation, Netanyahu knows exactly what he is doing.
John Kerry will also reportedly miss the pro-Israel group's annual event.
Netanyahu reportedly wrote it would "compound the misperception of partisanship."
Obama may sit for interview to counter Israeli leader.
Jeb Bush accused Obama of "lobbing leaks and insults" against Netanyahu.
The GOP's wobbly act on the big stage is looking more like a circus every day.
A new generation will rise in Israel, and Netanyahu will not be part of it.
“There’s a serious threat facing the world," he said.
Rep. Earl Blumenauer (Ore.) said the underlying motive for the speech was "outrageous."
House Democrats are circulating a letter urging the Speaker to push back the speech.
Netanyahu struck a defiant tone on Monday.