These proofreader’s marks are often used to show needed changes:

Question

C: Capital Letter
P: Punctuation
NP: New Paragraph
SF: Sentence Fragment
RO: Run On sentence
V: Missing Word
o: Add a Period
SP: Spelling Error
-->: Indent for New Paragraph
WW: Wrong Word used

I was wondering if you could check this for me I found all the mistakes that I think are wrong but can you double check for me?
(NP)--> For the leader of a pliticcal (SP) party, an election campaing (SP) is like a marathon, a popularity contest and a bingo game all rolled in won (WW).(RO) It’s a popularity contest (P, needed) because the main goal is to convince people to vote for you, (P) (C) to choose you over everyone else. Evry (SP) day the polls provide a snapshot of how the voter perceive (SP) you (o), and you and your party react by tweeking(SP) the message to appeal its increase. The next poles (SP) then tell you whether (WW) you are in fact more popular (P) than you were before. (NP) -->(WW) but (C) (P) an election campaign is also like a bingo game because you can’t just standup and say I’m the best and expect to win. Success comes from a combination of luck and quick reactions.(P) Not to mention that, just as in a bingo game, their’s(WW) a (SP) Prize to be won at the end-but only for one player. And only one player wins each game.NP) --> (SF) But (WW) most of all, a marathon is like an election campaign. (P) It’s a grueling effort that takes months of preparation. You need iron determination just to complete (V) campaign, let alone win it. Like a marathon, a campaign seems too last beyond the point of indurence (SP). (RO) Day-after-Day of speeches, photo opportunities, (V) handshaking can bring even on the hardiest leader to the point of exhaustion (SP) (o) or, (C) even worse, to the point of making that one stupid coment (SP) that costs ten percent of the vote or maybe the hole (WW) election;(o)
(NP) --> So how can a leader survive this marathon/popularity (P) contest/bingo game? (SF) With running a good campaign is the campaign team. Members of the team (WW) has to set their ego aside and focus on the collaborative goal of helping the leader and (WW) hence the party as a whole (V) succeed. Teamwork is the secret of running a good campaign.

Well thanks for your help!

.(RO) It’s a popularity contest because the main goal is to convince people to vote for you, (P) (C) to choose you over everyone else. This is not a run-on sentence, it has compound infinitive phrases. The punctuation is correct.

and you and your party react by tweeking(SP) the message to appeal its increase. ( here I would get rid of the and and capitalize You.... Also "appeal its increase" doesn't make sense here.

The next poles (SP) then tell you whether (WW) you are in fact more popular (P) than you were before.

"whether " is the word you want here, and you do not need puncuation between "popular and "than".

NP) -->(WW) but (C) (P) an election campaign is also like a bingo game because you can’t just standup and say I’m the best and expect to win.

"standup" is two words...and you need to put "I'm the best" into quotes.

Not to mention that, just as in a bingo game, their’s(WW) a (SP) Prize to be won at the end-but only for one player.
The above is a sentence fragment. Prize should not be capitalized and the puncutation following "end" should be a comma.

And only one player wins each game
this is repetition of the phrase before.

is like an election campaign. (P) It’s a grueling effort

The punctuation is correct.

Like a marathon, a campaign seems too last beyond the point of indurence (SP).

"too" is also incorrect

(V) handshaking can bring even on the hardiest leader to the point of exhaustion

The (V) isn't needed, however you need to delete the "on"

Members of the team (WW) has to set their ego aside

Members is plural so "ego" has to be plural also.

and (WW) hence the party as a whole (V) succeed.

hence is a perfectly good word here. However I would delete and make ( hence the party as a whole) into a parenthetical expression.