Senate or the vice president presides over the trial,
and the chief justice is usually on hand to rule on
evidence and answer questions. During a closed
session at the end of the trial, the Senate deliber-
ates the guilt or innocence of the accused person.
The Senate votes on each article of impeachment,
and if any article receives a two-thirds vote, then
they rule to convict the offi cial. Finally, the Sen-
ate votes whether or not to remove a guilty offi cial
from offi ce and whether or not he or she is eligible
to hold a federal offi ce in the future.
Throughout American history, few individuals
have been subject to impeachment. In 1804, Fed-
eralist Party Supreme Court Justice Samuel Chase
was impeached by the Democratic-Republican
House over disputes regarding his handling of tri-
als. The Senate, with Vice-President Aaron Burr
presiding, acquitted him in 1805. Among presi-
dents, the Republican House impeached Andrew
Johnson in 1868 in disputes over the handling of
Reconstruction. The Senate acquitted him by one
vote. In 1974, the House Judiciary Committee
voted on several articles of impeachment against
President Richard Nixon that included obstruc-
tion of justice arising out of Watergate and for
engaging in secret bombings of Cambodia. Nixon
resigned before the full House voted to impeach.
Finally, in 1998, the House voted to impeach
President William Clinton on four charges arising
out of the special prosecutor’s investigation into
his affairs with Monica Lewinsky and Paula Jones.
The Senate acquitted him on all charges.
For more information: Bacon, Donald C.,
Roger H. Davidson, and Morton Keller, eds. The
Encyclopedia of the United States Congress. New
York: Simon and Schuster, 1995; Nelson, Michael,
ed. Guide to the Presidency. 2nd ed. Washington,
D.C.: Congressional Quarterly, 1996.
—Jacqueline M. Loubet
imports, taxes on
Tariffs, or taxes on imports, played an integral
role in the American push for independence
from Great Britain. Accordingly, tariffs assumed
a place of central importance in the Constitu-
tion. The authority to impose a tariff is allocated
to Congress by Article 1, Section 8 of the U.S.
Constitution as part of congressional power to lay
and collect taxes. Import taxes must be uniform,
imposed throughout the United States.
Throughout U.S. history, taxes on imports have
been used to raise revenue, to protect American
manufacturers from foreign competition, or to
retaliate against other nations. The demand for
revenue, however, has been the driving force
behind tariff policy. The leaders of the new nation
recognized that the government needed to cre-
ate a revenue system to provide for operating
expenses while paying down the debt left over
from the American Revolution. However, any new
level of taxation would compete with numerous
state and local revenue streams. Congress real-
ized that federal revenue needed to come from
tariffs, since Americans imported a large number
of manufactured goods along with raw materi-
als, such as molasses. In 1789, the fi rst tariff act
passed under the Constitution after considerable
debate. Many of the northern states, interested in
developing their own manufacturing industries,
demanded high protective tariffs, while the agri-
culture-based southern states saw low tariffs as
being in their best interests. Throughout the 19th
century, protection of the iron, cotton manufac-
turing, wool, hemp, and other domestic industries
remained a recurrent theme in tariff bills.
The challenge to free trade posed by the tariff
has long been controversial. Robert Walker, secre-
tary of the treasury in the administration of Presi-
dent James K. Polk and a proponent of free trade,
engaged in an inclusive reading of Article 1, Sec-
tion 8. He interpreted the Constitution as requir-
ing Congress to both impose and collect taxes. In
reality, Walker’s concern proved unwarranted as
Congress never laid duties that it could not col-
lect. Merchants, on selecting goods to import, had
to pay the congressionally predetermined duty for
the given product.
The Supreme Court has occasionally ruled on
tariffs. In P
OLLOCK V. FARMERS LOAN AND TRUST
COMPANY, 157 U.S. 429 (1895), the Court struck
down an income tax provision included in the Wil-
son-Gorman Tariff Act of 1894 on the grounds
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