If you are running into spacing and formatting issues when using the NationBuilder content editor you are probably copying and pasting the text from another application. When you copy and past text from one application into the NationBuilder content editor what happens many times is that hidden html is attached to that text, and that can create issues with the formatting of your content.

In order to get around this, you can do a few things.

You can use the Paste from Word feature on the tool bar. You can copy and paste from Microsoft Word right into the clipboard, and click insert. Your text should be formatted and ready to go. 

You can also highlight all of the text in your content editor and then go to the drop down menu on the left hand side of the toolbar and select Paragraph. Chances are it was on Format before, and switching it over to Paragraph will allow you to make the necessary changes to your formatting. 

If all else fails, you can go into the html editor in the toolbar, and manually strip your content of any unnecessary html.