\documentclass[12pt,letterpaper,]{article}

% Double spacing
\usepackage{setspace}
\setstretch{2}
\usepackage{lipsum} 
\usepackage{amssymb,amsmath}
\usepackage{ifxetex,ifluatex}
\usepackage{fixltx2e} % provides \textsubscript

% Use only with pdflatex
\usepackage[utf8]{inputenc}
% Fonts
\usepackage{newtxtext}
\usepackage{newtxmath}

% Margins at least 1 in
% Margins of 1.25 inches in APSA Style Manual
\usepackage[margin=1in]{geometry}

\usepackage{hyperref}

\PassOptionsToPackage{usenames,dvipsnames}{color} % color is loaded by hyperref

\hypersetup{unicode=true,
            pdfkeywords={keyword1, keyword2, keyword3},
            colorlinks=true,
            linkcolor=black,
            citecolor=black,
            urlcolor=black,
            pdfborder={0 0 0},
            breaklinks=true}
            
\urlstyle{same}  % don't use monospace font for urls


\usepackage{natbib}
\setcitestyle{aysep={,}}
\bibliographystyle{apsr}


\usepackage{listings}



\usepackage{fancyvrb}
\VerbatimFootnotes % allows verbatim text in footnotes
\usepackage{longtable,booktabs}
\usepackage{graphicx,grffile}
\usepackage[draft]{pgf}
\makeatletter
\def\maxwidth{\ifdim\Gin@nat@width>\linewidth\linewidth\else\Gin@nat@width\fi}
\def\maxheight{\ifdim\Gin@nat@height>\textheight\textheight\else\Gin@nat@height\fi}
\makeatother
% Scale images if necessary, so that they will not overflow the page
% margins by default, and it is still possible to overwrite the defaults
% using explicit options in \includegraphics[width, height, ...]{}
\setkeys{Gin}{width=\maxwidth,height=\maxheight,keepaspectratio}
% Make links footnotes instead of hotlinks:
\renewcommand{\href}[2]{#2\footnote{\url{#1}}}

\setlength{\emergencystretch}{3em}  % prevent overfull lines
\providecommand{\tightlist}{%
  \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}

% Do not number sections
% Section formats from APSA Style Guide
\usepackage{titlesec}
% 1st level is centered and bold
\titleformat{\section}[block]{\normalfont\bfseries\large\filcenter}{}{}{}
% 2nd level is to the left and bold
\titleformat{\subsection}[hang]{\normalfont\bfseries\normalsize\filright}{}{}{}
% 3rd level is underlined and runs into the paragraph
\usepackage{ulem}
\titleformat{\subsubsection}[runin]{\normalfont\ul\normalsize}{}{}{}
% Do not number sections
\setcounter{secnumdepth}{0}

% manuscripts should not have thanks
\title{Title of the Paper}
\providecommand{\subtitle}[1]{}
\subtitle{Subtitle}
\author{Author}

\date{Date}

\begin{document}

\maketitle


\begin{abstract}
\lipsum[1]
\end{abstract}
\thispagestyle{empty}
\clearpage

\setcounter{page}{1}

\renewcommand\refname{}


\section{Introduction}

\lipsum[2-4]

\section{Results}

\lipsum[1]

\begin{figure}[ht]
\centering
\caption{Example caption}
\begin{pgfpicture}
    \pgftext{\pgfimage[width=10cm,height=6cm]{example.png}}
\end{pgfpicture}
\end{figure}

\lipsum[2-4]


\end{document}