[Necrophyte]

So here's what worked for me in the end.
I tried using actionpoll() function as a guide but it threw me off. Also tried looking at the ajax requested/sent info which again. Threw me off. The api looks for different data.
Traced content_text to poll.php in api folder. Led me to what it was looking for so I could give it the info. 'polloptions' needed to actually be called 'options' in a multi-dimensional array with 'titles'.
This is what worked for me in case someone comes to see this.

function startpoll($userid, $forum_id, $postmsg, $title){
	global $vbulletin;
	
	$api = Api_InterfaceAbstract::instance();
	$user  = $api->callApi('user', 'fetchUserinfo', array($userid));

	$input = array(
		'title'			=>  $title,
		'authorname'    => 	$user['username'],
		'rawtext'   	=>  $postmsg,
		'nodeid'    	=>  0,
		'parentid'  	=>  $forum_id,
		'channelid' 	=>  $forum_id,
		'ret'       	=>  '',
		'tags'      	=>  '',
		'reason'    	=>  '',
		'iconid'    	=>  0,
		'prefixid'  	=>  '',
		'hvinput'   	=>  '',
		'subtype'   	=>  '',
		'userid'    	=>  $userid,
		'username'  	=>  'User',
		'nl2br'     	=> 	false,
		'options' 		=> 	array(array ('title' => 'Yes, I support.'), array ('title' => 'No, I do not support.')),
		'timeout'		=> 	0,
		'multiple'      =>	 false,
		'ret'           =>	 '',
		'public'        => 	false,
		'parseurl'      => 	false,
	);
	
	$options = array(
		'skipDupCheck' => true
	);
	
	$nodeId = $api->callApi('content_poll', 'add', [$input, $options]);
	return $nodeId;
}

Thanks to Glenn for pointing me in the right direction.