Under which circumstances might a U.S. president send federal soldiers to enforce order in a state?

(1 point)
Item 2
• if a state needed help in collecting income tax
O if a state's elected governor committed a crime
O if a state collected tolls on an interstate highway
O if a state's police force could not keep the peace

Under the circumstance if a state's police force could not keep the peace, a U.S. president might send federal soldiers to enforce order in the state.