On Wednesday’s NewsHour…

BY newsdesk  July 7, 2010 at 4:19 PM EST

EAST COAST HEAT WAVE | Scorching heat and humidity gripped the northeast and mid-Atlantic states, pushing electricity use toward record levels and disrupting train travel. Gwen Ifill reports on how people are coping with temperatures topping 100 degrees.

REPUBLICAN PARTY’S POLITICAL DIVISIONS | Judy Woodruff reports on the philosophical war inside the Republican Party, where energized voters are calling for limited government, big spending cuts and less “Washington insiders” in office, while others seek greater bipartisan cooperation. Then, Jim Lehrer talks with Politcal Director David Chalian, the newest addition to PBS NewsHour’s political coverage on the show and online.

MAKING SENSE: FRANCE’S ECONOMY | As part of his ongoing series of reports making sense of economic news, Paul Solman talks with French Finance Minister Christine Lagarde about the European debt crisis, as France examines new calls for austerity and reforming its retirement system.

SOMALIA’S POLITICAL CRISIS | As the nearly two-decade political turmoil continues in the troubled East African nation of Somalia, Jeffrey Brown has a rare look into the failed state’s clashing militias and humanitarian crises with New York Times reporter Jeffrey Gettleman.

MARK TWAIN’S AUTOBIOGRAPHY | Mark Twain’s autobiography is set to be published for the first time, 100 years after the famous author and humorist’s death. Correspondent Spencer Michels reports on the soon-to-be-published manuscripts.

Wednesday’s anchors are Jim Lehrer and Gwen Ifill. Hari Sreenivasan will have the day’s other top news stories and a look at features on the Web, including more on Mark Twain, including a previously unpublished essay entitled “Concerning the Interview,” a lesson plan for teachers, and a chance to ask questions of the curator of his archive, Betty Ann Bowser’s blog about trailers brought to New Orleans after Katrina being re-purposed for oil spill cleanup workers, and Ray Suarez’s preview of his upcoming reports from Haiti, six months after the earthquake.

We hope you join us.