Ethics in Foreign Lobbying Act of 1990

Ethics in Foreign Lobbying Act of 1990 - Amends the Federal Election Campaign Act of 1971 to prohibit multicandidate political committees or separate segregated funds of certain organizations or corporations which are controlled by foreign persons from making any contributions or expenditures with respect to an election for Federal office. Directs the Federal Election Commission to require reporting of ownership interest percentages and to list them.

Prohibits foreign nationals from participating in the decisionmaking process of domestic organizations engaged in Federal, State, or local election-related activities.

Establishes within the Federal Election Commission a clearinghouse of public information regarding the political activities of foreign principals and their agents.

Amends the Foreign Agents Registration Act of 1938 to require agents to file quarterly supplemental registration statements. Provides that a foreign principal's legal representative in U.S. courts may only be exempted from filing registration statements upon the submission of an affirmative request for such exemption. Establishes civil penalties for violation of the registration requirements.