The fight to approve the Keystone XL pipeline has strengthened the relationship between unlikely bedfellows: the oil and manufacturing industry, and unions.
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The pairing between industry and a number of construction unions has undoubtedly put President Obama in an uncomfortable situation as labor unions have more often than not backed his policies.

But when it comes to the Keystone XL pipeline, a number of unions are frustrated and have built up their relationship with prominent oil lobby American Petroleum Institute, and the National Association of Manufacturers (NAM).

“I think they feel like they have been cast aside, and they’re not important and that’s their frustration,” said Russ Girling, CEO of Keystone XL developer TransCanada Corp. “Unions find it insulting.”