Congress that is shocked about operations in Niger was repeatedly informed about those operations

Daily Caller:

Members on Capitol Hill complained they did not know the extent of the U.S. troop presence in Niger following the ambush and killing of four U.S. servicemen there last week, though the Trump administration repeatedly told Congress about military efforts there.

The Obama administration even told Congress about a troop deployment there in 2013.

“I’m arguing that the current authorization as long as it’s related to radical Islam is enough. But here’s — the military determines who the threats are, they come up with the engagement policy and if we don’t like what the military does, we can defund the operation. But I didn’t know there was a thousand troops in Niger,” South Carolina Republican Sen. Lindsey Graham said on NBC’s “Meet the Press” Sunday. (RELATED: Two Top Senators Didn’t Know There Are 1,000 American Troops In Niger)

Senate Minority Leader Chuck Schumer also said Sunday that he did not know the extent of the U.S. presence in Niger.
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Additionally, the White House sent a letter to Congress in June saying 645 U.S. service members were in Niger and 300 were in Cameroon, and Gen. Thomas Waldhauser, head of Africa Command testified before the Senate Armed Services Committee in March there were “approximately 1,000 personnel conducting 12 named operations across a nine-nation region.”
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Apparently, it takes a casualty report to get the attention of many in Congress.  I recall the stories on the deployment back in 2013 by the Obama administration.  It probably helps that I am not in need of Alzheimer medication.