; (iv) is, or has been in the 4 years preceding the date of appointment, a Member, employee of the Senate, or employee of the House of Representatives; (v) is an officer or employee of the Federal Government; (vi) during the 4 years preceding the date of appointment, engaged in any significant political activity (including being a candidate for public office, fundraising for a candidate for public office or a political party, or serving as an officer or employee of a political campaign or party)