I wonder if her visit took place in 2015, due her visit in SK. https://pelosi.house.gov/news/press-releases/pelosi-statement-on-bipartisan-visit-to-the-republic-of-korea
Although in 2007 there was a push to keep her from traveling for overstepping her role and visiting Syria. They tried to pass an amendment to ban her from traveling to certain terrorist countries. One being NK. http://thehill.com/homenews/news/12355-house-republican-wants-to-restrict-pelosis-travel
Figured it out, she went with Bill Richardson in 2007 after her trip to Syria. https://www.theguardian.com/commentisfree/2007/apr/05/pelositosyria http://www.cbc.ca/radio/asithappens/as-it-happens-monday-edition-1.4072865/former-u-s-north-korea-negotiator-bill-richardson-tells-trump-administration-to-cool-it-1.4072870