Candidate Qualifying; Requiring a candidate for federal office to state in writing whether he or she intends to trade stock while serving in federal office; requiring candidates to ensure they satisfy statutory and constitutional requirements for office; requiring certain candidates to provide to the filing officer a statement disclosing dual citizenship for nomination and election to a judicial office or to a district school board; requiring candidates for representative to Congress seeking ballot position by petition to obtain a specified percentage of signatures to qualify for such office, etc.