false he did not propose 10%
what He actually had done is proposed a 5 percent tax on imported goods.
The “privileges and immunities clause” contained in Article IV, Section 2, provides, “The Citizens of each State shall be entitled to all Privileges and Immunities of Citizens of several states.” This limits the ability of states to favor their own citizens and discriminate against out-of-state citizens with respect.
The answer to the question is "FILIBUSTER".
We are being asked what is the tactic did senators use to try a blocked passage civil rights act of 1964 for more than two months and the answer is the "Filibuster tactic" on which they delay the votes.