Mitt Romney is vowing to approve TransCanada's Keystone XL pipeline on his first day on the job if elected president of the United States in November.

Congressional Republicans are refusing to back down in their attempts to win speedy approval of TransCanada's Keystone XL pipeline, vowing to link approval of the controversial project to a new jobs bill being introduced next week.

TransCanada Corp. has stepped up its publicity campaign for the politically charged Keystone XL pipeline, releasing a detailed breakdown of where the $7-billion project would create 20,000 jobs in the United States, if approved.