A Lipstick President By MAUREEN DOWD The president is working up a sweat, keeping that perfectly toned body perfectly toned. I slide past stone-faced men with earpieces and ask the president how it's going. "Good," she says, grinning. "People ask me if there could really be a woman president and I say, Of course, it's the 21st century." Geena Davis was shooting a rowing scene at the Potomac Boat House on Monday morning for her new ABC show, "Commander-in-Chief," about the first woman president. Luckily, the first woman president is tall, a shade taller than W., so she's eyeball to...