Tuesday primaries: The big races
Closely-watched contests in Pennsylvania, Arkansas, and Kentucky will offer clues about the public's mood, and what to expect in November

Just how severe is this year's anti-incumbent fever? Three Senate primaries on Tuesday will provide a clear gauge of the electorate's mood ahead of the crucial midterm election in November. Here, a quick guide to the races, and how to interprete the results:
PENNSYLVANIA - Democratic Senate primary
The candidates: Sen. Arlen Specter, 80, was first elected to the seat 30 years ago, and he won an endorsement from President Obama after switching parties last year. His opponent is Rep. Joe Sestak, 58, who has run ads saying, "It's time for a new generation of leadership."
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.

Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
What the polls say: Specter led early in the campaign by 20 percentage points. More recently, Sestak has pulled ahead.
What's at stake: A Specter loss would not look good for Obama, and would boost expectations of a general drubbing of incumbents — especially Democrats — in the fall.
ARKANSAS - Democratic Senate primary
The candidates: Sen. Blanche Lincoln, a moderate Democrat, is defending her vote for health care reform — but Arkansans overwhelmingly take dim view of ObamaCare. Her opponent, Lt. Gov. Bill Halter, says voters are so angry that Lincoln would be sure to lose in November's general election. "I clearly have a better shot," he says.
Sign up for Today's Best Articles in your inbox
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
What the polls say: A recent poll shows Lincoln leading Halter 44 percent to 32 percent — but by state law she needs 50 percent of the vote to escape a June 8 run-off.
What's at stake: A win for Lincoln would be a boost to President Obama, who has taped ads for her. Regardless of the outcome, Republicans smell blood and are expecting to capture the seat in November.
KENTUCKY - Republican Senate primary
The candidates: Rand Paul is a founder of the Tea Party movement in Kentucky and the son of GOP libertarian and former presidential candidate Rep. Ron Paul. His main rival, Secretary of State Trey Grayson, was hand-picked by Senate Majority Leader Mitch McConnell and other leaders of the party.
What the polls say: Paul has surged to a double-digit lead in the polls.
What's at stake: The Kentucky race is a crucial test of Tea Partiers' power at the polls — Paul victories on Tuesday and in November would constitute a historic triumph for the grassroots anti-tax movement. A Grayson loss would be blow to the GOP establishment.
Sources: Los Angeles Times, MSNBC, New York Times
-
Scientists want to fight malaria by poisoning mosquitoes with human blood
Under the radar Drugging the bugs
By Devika Rao, The Week US Published
-
Crossword: March 31, 2025
The Week's daily crossword
By The Week Staff Published
-
Sudoku medium: March 31, 2025
The Week's daily medium sudoku puzzle
By The Week Staff Published
-
The JFK files: the truth at last?
In The Spotlight More than 64,000 previously classified documents relating the 1963 assassination of John F. Kennedy have been released by the Trump administration
By The Week Staff Published
-
'Seriously, not literally': how should the world take Donald Trump?
Today's big question White House rhetoric and reality look likely to become increasingly blurred
By Sorcha Bradley, The Week UK Published
-
Will Trump's 'madman' strategy pay off?
Today's Big Question Incoming US president likes to seem unpredictable but, this time round, world leaders could be wise to his playbook
By Sorcha Bradley, The Week UK Published
-
Democrats vs. Republicans: who are the billionaires backing?
The Explainer Younger tech titans join 'boys' club throwing money and support' behind President Trump, while older plutocrats quietly rebuke new administration
By Harriet Marsden, The Week UK Published
-
US election: where things stand with one week to go
The Explainer Harris' lead in the polls has been narrowing in Trump's favour, but her campaign remains 'cautiously optimistic'
By Harriet Marsden, The Week UK Published
-
Is Trump okay?
Today's Big Question Former president's mental fitness and alleged cognitive decline firmly back in the spotlight after 'bizarre' town hall event
By Harriet Marsden, The Week UK Published
-
The life and times of Kamala Harris
The Explainer The vice-president is narrowly leading the race to become the next US president. How did she get to where she is now?
By The Week UK Published
-
Will 'weirdly civil' VP debate move dial in US election?
Today's Big Question 'Diametrically opposed' candidates showed 'a lot of commonality' on some issues, but offered competing visions for America's future and democracy
By Harriet Marsden, The Week UK Published