Leon Guerrero served as a senator of the 23rd, 24th, 26th, 27th, and the 28th sessions of the Guam Legislature. In addition, she introduced and secured the passage of the Natasha Protection Act, which regulates public smoking.
Entry to the Guam Legislature (1995–1999) 23rd Guam Legislature Lou Leon Guerrero first ran to become senator in the
Guam Legislature in
1994. Leon Guerrero advanced to the general election after having placed 9th, with 10,611 votes, in a field of 30 candidates in the
Democratic Party of Guam's legislative primary election held on September 3, 1994. Leon Guerrero won election, receiving 20,168 votes and placing 9th in the general election on November 8, 1994. Leon Guerrero was inaugurated to serve in the
23rd Guam Legislature on Monday, January 2, 1995. During her first term in the Guam Legislature, Leon Guerrero was in the majority and sponsored or co-sponsored 18 public laws.
24th Guam Legislature Lou Leon Guerrero ran for reelection into the 24th Guam Legislature in 1996. She advanced to the general election after having placed 12th, with 10,185 votes, in a field of 31 candidates in the democratic primary election of September 7, 1996. She won reelection, receiving 20,050 votes and placing 8th in the general election on November 5, 1996. As a minority member of the 24th Guam Legislature, Leon Guerrero sponsored or cosponsored 6 public laws.
1998 lieutenant gubernatorial candidacy Incumbent Governor
Carl T.C. Gutierrez and Lieutenant Governor
Madeleine Z. Bordallo had two Democratic primary election challenges for
Governor and
Lieutenant Governor of Guam in
1998. Lou Leon Guerrero was chosen as the running mate of Senator
Thomas C. Ada, and Senator
Angel L.G. Santos ran with Mayor
Jose "Pedo" Terlaje. The "Tom and Lou" ticket placed 2nd in the Democratic gubernatorial primary on September 5, 1998, with 9,788 votes.
27th Guam Legislature Leon Guerrero stood for election in the
27th Guam Legislature in
2002. Leon Guerrero advanced to the general election after placing 3rd in the Democratic primary election on September 7, 2002, with 14,112 votes. Leon Guerrero placed 5th in the general election on November 5, 2002, with 23,651 votes. As a majority member of the 27th Guam Legislature, Leon Guerrero sponsored 21 public laws.
28th Guam Legislature Leon Guerrero ran for re-election into the
28th Guam Legislature in
2004. After placing fourth in the Democratic primary election on September 7, 2004, with 7,983 votes, Leon Guerrero advanced to the general election. Leon Guerrero was elected into the 28th Guam Legislature, placing 14th and garnering 14,853 votes in the general election on November 2, 2004. During this term she authored 27 bills, 9 of which became public laws. ==Business and non-profit career==