Sentence: My change in party affiliation does not mean that...

[Infin1ty]

"My change in party affiliation does not mean that I will be a party-line voter any more for the Democrats than I have been for the Republicans."

Could anyone please tell me what the sentence in italic means? What does "a party-line voter" mean? Thanks in advance.
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[Shyone]

Good Morning

Here is a link for you as to what party-line voting means. I hope it will help you to understand.

http://en.wikipedia.org/wiki/Party-line-voting

Unfortunately my English is not sufficient to explain it in my own words.
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[Skrej]

Certain political parties tend to vote a certain way on any given issue. The party takes a stance, and most members of that party will vote the same way. This is called voting along party lines.

The speaker (it is Arlen Specter, formerly Republican Senator from Pennsylvania, now a Democratic Senator from Pennsylvania) is saying that just because he has switched to being a member of the Democratic Party, doesn't mean that he will necessarily vote the way all Democrats are supposed to vote.
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[Infin1ty]

Good morning! Thank you very much, Andrea and Skrej. Your explanations make it clear to me now.
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Today is a gift, that's why we call it the present.

[Infin1ty]

Hello Skrej,

"I will be a party-line voter any more for the Democrats than I have been for the Republicans."

This sentence suggests that he didn't use to be a party-line voter when he was a Republican. Am I right?
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Today is a gift, that's why we call it the present.

[Shyone]

You are perfectly right
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[Infin1ty]

Thanks again, Andrea. Have a nice day!
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Today is a gift, that's why we call it the present.