Which of the following is an example of how Congress checks the power of the President?a. declaring laws unconstitutionalb. negotiating

Checks and balances were made so a branch couldn't abuse their power.

Explanation:

The President can "check" congress by vetoing a law congress passed. But congress can check the president by overriding the veto and still pass the law.

^^ this answers both the questions and example

Congress can check him if a 2/3 majority votes to override his veto

Explanation: The President in the executive branch can veto a law, but the legislative branch can override that veto with enough votes. The legislative branch has the power to approve Presidential nominations, control the budget, and can impeach the President and remove him or her from office.

They can have a 2/3s vote to override his veto. The senate also checks (votes for or against) nominations for positions within the government.

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers

Ibelieve the answer is answer 5