Which headline best illustrates the operation of

checks and balances?

(1) “President Andrew Johnson Impeached by the

House of Representatives”

(2) “President Dwight Eisenhower Sends Troops to

Little Rock”

(3) “President Ronald Reagan Engages in Arms

Reduction Talks with the Soviets”

(4) “President George W. Bush’s Approval Ratings

Drop Due to the Iraq War”