None of the challenges we face lend themselves to simple solutions or bumper-sticker slogans.

WHITEHOUSE: Presidential Press Conference

Mr. Weinstein, whom the Associated Press once quoted as saying that a Christian-themed bumper sticker on an officer's car or a Bible on an officer's desk can amount to "pushing this fundamentalist version of Christianity on helpless subordinates, " wants the Pentagon to court-martial officers who proselytize.

WSJ: Mollie Ziegler Hemingway: The Pentagon's Problem With Proselytizing

The invisible bumper sticker of the second campaign read: RE-ELECT ONE, GET ONLY ONE.

CNN: AllPolitics - TIME This Week

Randy Stanley, who recently leased a Nissan Leaf and has a bumper sticker declaring, "This machine starves terrorists, " calls it a "chicken-or-the-egg" scenario -- charging stations won't pop up unless there's demand, but some drivers are reluctant to get an electric car until they see more public stations.

CNN: Public charging stations fuel desire for electric cars

Ms. LAUREN SMITH (Obama Volunteer): Knowing that having a bumper sticker on my car and putting a button on my backpack or donating money wasn't enough to - I didn't feel like that was gonna be enough, because if he doesn't win, I would feel terrible.

NPR: Obama, Clinton Target Maryland's Black Vote