Does findall() also include newline character by default?

I got curious while watching this video and tried a regular expression as follow

print(re.findall(r'@[Kenneth Lomax](https://teamtreehouse.com/kennethlomax) [-.?\d\w]*[^gov\t]\b',data))

It return the following list: ['@teamtreehouse.com', '@kennethlove\n', '@teamtreehouse.com', '@camelot.co.uk', '@norr botten.co.se', '@sverik', '@killerrabbit.com', '@teamtreehouse.com', '@ryancarson\n', ' @tardis.co.uk', '@example.com', '@example\n', '@us.', '@potus44\n', '@teamtreehouse.com ', '@chalkers\n', '@empire.', '@darthvader\n', '@spain.']
1.My first question why do many of the entries have a newline character also coming in the match when my pattern does not have a newline character in the characterclass/set. 2.In the video why is \t being used does findall() match tabs eventhough they are not mentioned in the pattern.