Dive summary:

• More than $100 million had flowed from construction companies and industry organizations to federal election campaigns when totals were last calculated with 12 days until voting.
• Mitt Romney had to like the report – 72% of the funds went to Republican candidates this year, up from 63% in 2008. He received $8.1 million. President Obama got $3.8 million.
• Labor unions and organizations had contributed $22 million as of the Oct. 25 tally, and 88% went to Democratic candidates.

From the article:

As presidential and congressional campaigns head toward the Nov. 6 finish line, construction industry companies, associations and labor unions have pushed their campaign contributions to new highs. ...