It's been years since I read Eisenhower's biography, but my recollection is that within the military a lot of the aid to Russia was seen as a terrible idea and many felt that the British tricked the US into giving that aid in a secret three-way meeting in North Africa.
Nope, incorrect. Lend Lease was criticized that it wasn't really lending gear, since there was a high expectation that it wasn't coming back.
I don't know of any large scale thoughts that Britain tricked the US into entering initial aid attempts. The US was heavily into anti Axis attempts early in the war.