How do the three branches of the US government limit each other’s powers?
through popular sovereignty and federalism
through the House and Senate
through amendments and articles
through checks and balances

His is the name of the group in the house of representatives that, in 1947, began hearings to expose communist infiltration in american life. unfortunately, a good deal of the evidence they used was based on hearsay and conjecture, meaning innocent people were harmed by their findings.