Table:
text: United States House of Representatives elections, 1986
Pennsylvania
Pennsylvania
District Incumbent Party First_elected Result_ Candidates
Pennsylvania 6 Gus Yatron Democratic 1968 Re-elected Gus Yatron (D) 69.1% Norm Bertasavage (R) 30.9%
Pennsylvania 7 Robert W. Edgar Democratic 1974 Retired to run for U. S. Senate Republican gain Curt Weldon (R) 61.3% Bill Spingler (D) 38.7%
Pennsylvania 9 Bud Shuster Republican 1972 Re-elected Bud Shuster (R) Unopposed
Pennsylvania 12 John Murtha Democratic 1974 Re-elected John Murtha (D) 67.4% Kathy Holtzman (R) 32.6%
Pennsylvania 15 Donald L. Ritter Republican 1978 Re-elected Donald L. Ritter (R) 56.8% Joe Simonetta (D) 43.2%
Pennsylvania 17 George Gekas Republican 1982 Re-elected George Gekas (R) 73.6% Michael S. Ogden (D) 26.4%

Question: Who is the incumbent in the 1986 United States House of Representatives election with candidates unopposed Bud Shuster (r) in Pennsylvania?

Question: What is the constituency with candidates Curt Weldon (r) 61.3% Bill Spingler (d) 38.7% in the United States House of Representatives election from Pennsylvania, 1986?

Question: What is the highest number of first elections with incumbent Gus Yatron in the 1986 United States House of Representatives election from Pennsylvania?

Question: Which district was first elected in the 1972 United States House of Representatives elections in Pennsylvania in 1986?