Question

what congressional action did amendment 27 prohibit?
passing pay raises for the current term of office
impeaching the president without just cause
shutting down the government over budgets

Explanation:

The 27th Amendment to the U.S. Constitution restricts congressional pay adjustments, stating that any change in compensation for members of Congress may not take effect until after the next election of representatives. This directly prohibits lawmakers from giving themselves pay raises that apply to their current term in office. The other options relate to separate congressional powers not addressed by this amendment.

Answer:

passing pay raises for the current term of office