\RequirePackage{fix-cm}
\documentclass[a4paper]{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
\node[text width=15cm] at (0,0) {
\fontsize{25mm}{27mm}\sffamily\raggedright
15th Congress for\par
};
\node[text width=15cm] at (0,-8) {
\fontsize{25mm}{27mm}\sffamily\raggedright
\spaceskip0pt%
\xspaceskip0pt%
15th Congress for\par
};
\end{tikzpicture}
\end{document}