Well, some red stuff says that "need more than 20 letters", so that's why I'm typing this up.
T-R-U-E
It's true! :)
Answer:
Lincoln got shot behind the head and he is the tallest president
"They promised bills and laws in favor of immigrants in exchange for votes" is the one way among the following choices given in the question that political machines, such as Tammany Hall, work with and for immigrants.