In this photo taken Feb. 11, 2015, Rep. Jeff Denham, R-Calif. poses with Lily, his 15-pound French bulldog in his office on Capitol Hill in Washington. It all began with Lily, a 15-pound snowball of a French bulldog with dark mahogany eyes, a wrinkly nose and a penchant for jumping on furniture and laps so that she can get closer to her many human visitors. She and her owner, Rep. Jeff Denham of California, take the occasional coast-to-coast plane ride together. But when he tried to take her on Amtrak a couple years back, he learned that only service dogs were allowed aboard. It's a policy he's been trying to change ever since, and he appears to be gaining momentum.  (AP Photo/J. Scott Applewhite)

“It’s been wildly bipartisan,” Denham said of his proposal. “Members that have pets have a particular interest, but certainly we’ve picked up more and more support across the country.”

FILE - In this Jan. 28, 2005 file photo, Dutch tourist Carolyn Dorsman, right, rides through the canopy of the tropical forest, as her husband Wim Dorsman, left, and Costa Rican guide Esteban Cedeno, center, look on at the Arenal Volcano near La Fortuna, Costa Rica, north of the capital of San Jose. Zip lining through the Costa Rican rainforest is an extremely popular pursuit among tourists. (AP Photo/Kent Gilbert, File)

“Want to keep going?” I asked him, hoping he’d say no. But he nodded, determined. “Once you start, you have to keep going,” I reminded him — and myself. There was no hiking trail back.

This undated image provided by Virgin America airlines on Feb. 3, 2015 shows a cucumber vodka mojito cocktail available on the company's flights. Anthony Caporale, writer and host of the Off-Broadway musical comedy, "The Imbible: A Spirited History of Drinking." expects drinks options in the sky to continue to improve as customers used to the cocktail revolution that has swept through bars and restaurants bring their high expectations on board. (AP Photo/Virgin America)

“You can actually get a decent drink,” says Anthony Caporale, director of beverage studies at the Institute of Culinary Education in New York. “I started a few years back seeing small-batch bourbons on flights. Now I think it’s uncommon for me to get on a major airline that doesn’t have some sort of craft American whiskey.”