CONSTITUTION
ImpeachmentThe Constitution confers upon the Senate the sole power to try all impeachments. If the President of the United States is being tried, the clause additionally directs that the Chief Justice of the Supreme Court shall preside. A conviction requires the votes of two-thirds of the Senators present.
Read more in Article I, Section 3.
Also check out:
Federalist Paper No. 69
War PowersWhile the President is the Commander in Chief, Congress holds the power to declare war, to raise and support armies, to provide and maintain a navy, and to make rules for the government and regulation of the land and naval forces.
Read more in Article I, Section 8 and Article II, Section 2.
Articles and AmendmentsThe Constitution itself sets forth the process under which the States or Congress may amend it. So far, there have been twenty seven amendments to the Constitution. A fair number of amendments deal with the right to vote, reflecting its significance in this nation's political history.
The 15th, 19th and 26th Amendments, respectively, prohibit restricting the right to vote on account of color, sex, and age. In addition, the 17th Amendment changed the method for selecting Senators to popular election, the 23rd Amendment opened federal elections to District of Columbia residents, and the 24th Amendment abolished the use of poll taxes in federal elections.
Before the 17th Amendment, how were Senators selected? Find out.
Also check out:
Article V – The Amendment Process.
Interstate CommerceUnder the Constitution, Congress has the power to regulate commerce among the states. From 1887-1937, the Supreme Court narrowly interpreted the Commerce Clause and struck down numerous federal laws, such as those regulating the mining and manufacturing industries.
Since then, the Court has permitted wide-ranging Congressional legislation, including child labor laws and civil rights statutes prohibiting racial discrimination in places of public accomodations.
See Article I, Section 8.