If Rogan doesn't seek re-election, Republicans lose the advantage of incumbency in the district.
The seat became available when Republican incumbent Pat Toomey chose not to seek re-election.
Matt Blunt, the Republican governor, announced in January that he would not seek re-election.
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Watts thought about retiring in 2000, but Hastert helped to persuade him to seek re-election.
This week, malleable MPs voted for a constitutional amendment to let him seek re-election.
Medvedev has been pestered by reporters in Moscow all year about whether he will seek re-election.
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Henry Espy decided not to seek re-election after more than two decades in office.
Vitter takes the seat occupied by Democrat John Breaux, who did not seek re-election.
Senate Democratic leaders had met with him several times in recent days, encouraging him to seek re-election.
Schwarzenegger's time as governor is up in 2010, and he cannot seek re-election because of term limits.
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But many observers have said that, freed from the need to seek re-election, Mr Blair has become re-energised.
Hertfordshire's police and crime commissioner (PCC) has defended his decision to seek re-election in May's county council ballots.
Current Liberal party leader Jean Charest is banking on the Plan Nord project to seek re-election on Sept. 4.
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The proposed lease had presented a political conundrum for the governor, who is planning to seek re-election in 2002.
It's not clear if either of them or someone else would challenge Gephardt if he decides to seek re-election.
Following the fracas in February last year, Mr Joyce, a former soldier, announced he would not seek re-election in 2015.
Mr Winter said he had taken the decision not to seek re-election to "take the heat out" of the situation.
Political change is now needed urgently in Indonesia and Suharto must not seek re-election for his seventh term in office.
The seat became available when Democrat Daniel Patrick Moynihan decided not to seek re-election after 24 years in the Senate.
Some have called on him to step down, but Ford has refused to resign and vowed to seek re-election next year.
The race for governor in Missouri became competitive after Republican Gov. Matt Blunt announced in January he would not seek re-election.
This weekend, Russian president Dmitry Medvedev said he will not seek re-election and gave his prime minister, Vladimir Putin his blessing.
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Therefore I have decided to seek re-election to the House of Representatives.
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Frank Lautenberg (New Jersey) and Richard Bryan (Nevada) joined New York Democrat Daniel Patrick Moynihan in announcing they would not seek re-election.
Conceding defeat, Mr Gonzi said he took full responsibility for the Nationalists' poor result and would not seek re-election as party leader.
And Democrats are shaken by the news that the Democratic attorney-general, Dan Morales, will not seek re-election in 1998 for family reasons.
He decided not to seek re-election to pursue the Democratic presidential nomination this year, coming in second to Kerry in the primaries.
Bozize has said he will not seek re-election in 2016, Ngbapo said.
Two years ago, by contrast, 13 senators chose not to seek re-election.
He decided not to seek re-election as governor, instead declaring his candidacy for the Republican presidential nomination at the end of his term.
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