of any party by virtue of his or her selection in the primary. 4. Protection of Rights of Political Parties Nothing in this Act shall restrict the right of individuals to join or organize into political parties or in any way restrict the right of private association of political parties. Nothing in this Act shall restrict a party’s right to contribute to, endorse, or otherwise support a candidate for the office of Senator or Member of the House of Representatives. Nothing in this Act may be construed to prevent a political party from establishing such procedures as it sees fit to endorse or support candidates or otherwise participate in all elections, or from informally designating candidates for election to such an office at a party convention or by whatever lawful mechanism the party may choose, other than pursuant to a primary election held by a State. Nothing in this Act may be construed to prevent a political party from adopting such rules as it sees fit for the selection of party officials (including central committee members, presidential electors, and party officers), including rules restricting participation in elections for party officials to those who disclose a preference for that party at the time of registering to vote. 5. Treatment of Election Day in same manner as legal public holiday for purposes of Federal employment (a) In General For purposes of any law relating to Federal employment, the Tuesday next after the first Monday in November in 2018 and each even-numbered year thereafter shall be treated in the same manner as a legal public holiday described in section 6103 of title 5, United States Code. (b) Sense of Congress regarding treatment of day by private employers It is the sense of Congress that private employers in the United States should give their employees a day off on the Tuesday next after the first Monday in November in 2018 and each even-numbered year thereafter to enable the employees to cast votes in the elections held on that day. (c) No Effect on Early or Absentee Voting