(CNN) - Former House Speaker New Gingrich admitted his worst mistakes ahead of his presidential announcement that is scheduled to come via Twitter and Facebook Wednesday.
"My two biggest mistakes were being undisciplined and that I didn't listen enough," Gingrich told the Washington Times in an article published Tuesday night. "I am working very diligently to be part of a team and to be sure that the team leaders have a lot of input, along with me.
During his four years as the top person in Congress, Gingrich said he "would talk to the press as a political analyst, instead of a Speaker of the House."
The former Georgia congressman was instrumental in putting together the 1994 Contract with America and leading the GOP to victory in the midterm elections that year, taking back control of the House for the first time in four decades. As Speaker, Gingrich became the face of Republican opposition to then-President Bill Clinton, but ultimately stepped down from his leadership post and resigned from Congress following setbacks in the 1998 midterm elections and amid some controversy.
"There were a lot of people giving me constructive feedback, and I wasn't listening," Gingrich said.