KSTP (1500 kHz; SKOR North) is a commercial AM radio station licensed to Saint Paul, Minnesota.

[8] On November 11, 1927, WAMD's transmitter site at Oxboro Heath on Lyndale Avenue South burned down, two weeks after the station had been sold to the National Battery Company.

In mid-December 1927, the National Battery Company announced it had received permission from the Federal Radio Commission (FRC) to build a new station, with the call letters KSTP, operating from a transmitter site to be constructed three miles south of Wescott.

[22] In 1941, as part of the implementation of the North American Regional Broadcasting Agreement (NARBA), KSTP was assigned to its current "clear channel" frequency of 1500 kHz, with the provision that it and WJSV, as "Class I-B" stations, had to maintain directional antennas at night in order to mutually protect each other from interference.

In 1973, KSTP broke away from its longtime adult MOR sound and became one of four area stations at the time to program a Top 40 format.

The competition would eventually shake itself out, with outrageous rocker WYOO leaving the format after being sold in 1976, and then the staid WDGY switching to country music the following year.

While it usually carried local hosts, in 1988 KSTP became one of Rush Limbaugh's first affiliates when his conservative talk show was rolled out for national syndication.

[25] Following on the heels of Limbaugh's success, the station launched a daily talk show with Joe Soucheray in 1993 would eventually become Garage Logic.

The next year, KSTP brought in future Congressman Jason Lewis to host evenings and ratings continued to skyrocket.

While its midday lineup was conservative, KSTP featured many left-leaning personalities, including Barbara Carlson, Tom Mischke, Turi Ryder and Don Vogel.

Sensing an opportunity, Clear Channel rebranded KTLK-FM as a conservative talk radio station by taking back the rights to Limbaugh and Sean Hannity and putting them head-to-head against KSTP.

This radio war escalated when Lewis returned the Twin Cities in 2006 to compete against his former employer in afternoon drive.

Unable to find a consistent voice after the loss of Lewis and Limbaugh, and following years of dwindling ratings and lackluster leadership, KSTP laid off the majority of their staff and abruptly switched to Sports Radio on February 15, 2010.

KSTP did not become an ESPN Radio affiliate until April 12, the same day that the Minnesota Twins opened their new ball park, Target Field.

Notable hosts who have been on KSTP include John Hines, Jesse Ventura, Larry Carolla, Tom Barnard, Don Vogel, John MacDougall, Geoff Charles, Joe Soucheray, Patrick Reusse, James Lileks, Leigh Kamman, Chuck Knapp, Machine Gun Kelly, Charle Bush, Mark O'Connell and Paul Brand.

Other syndicated hosts previously heard on KSTP include Bruce Williams, Larry King, Art Bell, and Owen Spann.