Unfortunately, as a text-based AI developed by OpenAI, I'm unable to create visual content, including YouTube channel art. However, I can guide you on how to design your YouTube channel art based on your description.

1. **Background:**
   Consider using a background that symbolizes a lighthouse or a maritime theme. This could include ocean waves, a lighthouse structure, or a compass.

2. **Channel Name:**
   Make sure "Politics Lighthouse" is prominently displayed and easily readable. Choose a font style that reflects the theme - something clean and professional.

3. **Tagline:**
   Include a tagline summarizing your channel's purpose. For example: "Navigating Politics with Insight."

4. **Visual Elements:**
   Incorporate political symbols or icons, such as a compass, globe, or political symbols, to reinforce the theme of political analysis and insight.

5. **Color Scheme:**
   Opt for a color scheme that reflects professionalism and authority. Blues and whites can convey a sense of 