[GeronL]

Public records demonstrate Serco’s concentrated effort to woo the U.S. government. In recent years, it has spent more than a million dollars[2] on lobbying and political activities, including $6,450 donated to President Obama’s election campaign, according to the Sunlight Foundation.

How come foreign companies are allowed to donate to political campaigns?

[Whenifhow]

How come foreign companies are allowed to donate to political campaigns?
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Don’t know the rules that well, but recall this came up in the 2008 campaign. Others may have a better response.