Creating a comprehensive and searchable database as the one you've described involve several steps, each important to ensure the accuracy and usability of the completed database. Here is how you can approach this task:

1. Define the Structure and Scope:

• Decide on parameters of the information you want to collect (e.g., names, roles, committee memberships, home states, top).
• Determine the categories and tags that will organize your data for easy searching (e.g., "Elected," "lected," "PAC Leadership," "Donor," "State," etc.).

2. Establish Data Sources

• Identify reputable and official sources (e.g., FEC.gov for PACs,.gov, House.gov, state legislature websites for elected officials).
• Choose respected news sources for rumored or "unofficial" roles and scandals, such as major newspapers or non-partisan political watchdog groups.

3. Data Collection and Entry:

• Develop a method for collecting information, such as manual entry, web scraping, or using APIs if available.
• Create a database schema on a platform like MySQL, PostgreSQL, or even a simple spreadsheet software with fields for each piece of information're collecting.
• Regularly update the database through manual input or automated scripts that pull from your sources.

4. Database Accessibility:

• a frontend interface for users to interact with the database through queries (this could be a website, a desktop application, etc.).
• Implement a search engine within your database using SQL commands for complex searches or a simpler query function in a spreadsheet.

5. Regular Updates and Verification:

• Schedule regular updates to the database to reflect new information or changes.
• Verify the accuracy of the data — especially when it involves rumors or scandals — to maintain the integrity of your database.

6. Legal and Ethicalations:

• Make sure you're in compliance with legal regulations concerning data collection, especially people’s personal data (in light of laws such as GDPR or CCPA).

• Consider the ethical implications of storing and publishing information about individuals, especially regarding sensitive information like allegations and scandalsTechnical Steps to Set Up a Basic Database:

• Choose a database platform that suits your skills and needs. For big datasets, consider MySQL, PostgreSQL, or MongoDB. For smaller or simpler projects, a Microsoft Excel or Google Sheets spreadsheet might suffice.

• Setup the database with tables containing the structure you've defined for elected officials, PAC leadership, donors, etc.

• Populate the database with initial data, ensuring that each entry has a unique identifier (like an ID number or username).

• Design a user interface to search the database. For a spreadsheet, this may be as simple as using filter functions. For SQL databases, you write queries to fetch the data.

• Decide on a protocol for updating the database. This might involve manual entry through forms in your user interface, writing scripts to scrape data from websites, or importing data from provided APIs.

Given the complexity of what you're asking, this would typically be a task for a group of skilled individuals, including database administrators, data clerks, frontend developers, and possibly legal advisors.

Unfortunately, as an AI model, I cannot perform these actions directly., this overview should give you a starting point to work with a qualified team to build your political database. If you lack the technical skills personally and if this is a significant project, you may need to hire professionals who can take care of both the technical and legal aspects of building such a database.