```ruby
class PoliticiansController < ApplicationController

  def show
    @politician = Politician.active.where(:user_name => params[:user_name]).first
    
    # need to get the latest tweet to get correct bio. could do with optimization :)
    @latest_tweet = Tweet.where(:politician_id => @politician.id).first
    
    @tweets = DeletedTweet.includes(:politician => [:party]).where(:approved => true, :politician_id => @politician.id).paginate(:page => params[:page], :per_page => Tweet.per_page)

    respond_to do |format|
      format.html { render } # politicians/show
      format.rss  do
        response.headers["Content-Type"] = "application/rss+xml; charset=utf-8"
        render "tweets/index"
      end
    end
  end
end```

Handle 404s of politicians naturally
user
```ruby
class PoliticiansController < ApplicationController

  def show
    @politician = Politician.active.where(:user_name => params[:user_name]).first
    not_found unless @politician
    
    # need to get the latest tweet to get correct bio. could do with optimization :)
    @latest_tweet = Tweet.where(:politician_id => @politician.id).first
    
    @tweets = DeletedTweet.includes(:politician => [:party]).where(:approved => true, :politician_id => @politician.id).paginate(:page => params[:page], :per_page => Tweet.per_page)

    respond_to do |format|
      format.html { render } # politicians/show
      format.rss  do
        response.headers["Content-Type"] = "application/rss+xml; charset=utf-8"
        render "tweets/index"
      end
    end
  end
end```
assistant