Why did founders give congress unlike the president and Supreme Court expressed powers?

Answer 1

because of The Article provides that Congress consists of a House of Representatives and the Senate, establishes the manner of election and qualifications of members of each House, and outlines legislative procedure and enumerates the powers vested in the legislative branch. Finally, it establishes limits on the powers of both Congress and the states.

Each of the first three Articles of the Constitution concern one of the three branches of the federal government. The legislative branch is established under Article One, the executive branch under Article Two, and the judicial branch under Article Three.

Amendments to certain provisions of Article One, unlike amendments to other articles, are explicitly restricted by the Constitution (these restrictions are imposed by Article Five). For example, no amendment made prior to 1808 could affect the first and fourth clauses of Section Nine. The first clause prevented Congress from prohibiting the slave trade until 1808; the fourth barred any direct taxes that were not apportioned among the States according to population.