麦凯恩选情开始受到威胁，民主党夺得共和党长期拥有的议员席位

在奥巴马大胜希拉利的露易丝安纳州。民主党选举的连续造势和奥巴马的胜利，帮助民主党刚刚夺得被共和党长期拥有的一个众议员席位。

这个胜利具在传统的共和党保守的州有相当的指标效应。奥巴马对中间选民和共和党内偏左的选民的吸引力，将对麦凯恩的选情造成相当的冲击力。这部分中间选民将取到重要的杆秆效用，特别在一些中间偏右的共和党传统的州，有可能产生天平逆转的作用。

注：共和党现在已经在它的竞选广告中把奥巴马作为唯一的攻击对象。


Democrats on Sunday cheered a weekend special election in Louisiana, where a Democratic congressional candidate won a seat that has been held by Republicans for decades.

Democratic State Rep. Don Cazayoux beat Republican Woody Jenkins in the state\'s 6th Congressional District on Saturday, with Cazayoux winning 49 percent of the vote to Jenkins\' 46 percent. Both parties viewed the race as a potential bellwether of November\'s congressional races.

The national GOP poured more than $1 million into the contest in an attempt to tie Cazayoux to national Democrats such as House Speaker Nancy Pelosi and presidential candidate Sen. Barack Obama of Illinois.

Don Cazayoux\'s victory this evening proves once again that Americans across our country want real solutions and reject Republicans\' negative attacks, Pelosi said in a written statement hailing the win.


The contest was to replace U.S. Rep. Richard Baker, an 11-term Republican who resigned in February to become a lobbyist. The district, which includes capital city Baton Rouge and its surrounding parishes, has been held by the GOP since 1974.
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Democrats viewed a victory there as an indication of just how vulnerable Republicans will be in November, while Republicans viewed the race as an early glimpse of how a possible Obama candidacy could affect races down the ticket.

Cazayoux\'s win comes two months after Democrat Bill Foster won a special election in Illinois to replace former House Speaker Dennis Hastert, and Democratic Congressional Campaign Committee Chairman Chris Van Hollen quickly sought to link the two races.

Freedom\'s Watch, a conservative group formed by former Bush administration officials, got involved in the race by financing anti-Cazayoux television ads -- a move Democrats said violated election laws.

But the National Republican Congressional Committee countered that their attempts to link Cazayoux to Pelosi and Obama helped Jenkins make up substantial ground in the race.

When Barack Obama and Nancy Pelosi were introduced into this campaign, Don Cazayoux was leading by a large margin in the polls, an NRCC memo stated. Since then, Republicans saturated the Baton Rouge airwaves in an effort to nationalize this contest and make the election about the real-life consequences of a Barack Obama presidency and a continued Pelosi-run Democratic Congress.